Conversion of galvanometer into ammeter, current electricity. Your browser does not currently recognize any of the video formats available. Oct 06, 2019 a galvanometer is a type of sensitive ammeter. A galvanometer can be converted into ammeter by connecting a low resistance called shunt in parallel to the galvanometer. Galvanometer into voltmeter,current electricity,physcis class 12 pls like and share this vedio subscribe to our channel for more vedios like this. Impetus gurukul physics vivek phalke 65,390 views 59. To convert weston galvanometer to a voltmeter of voltage range 0 to v volts. Then a major portion of the current passes through this low. The shunt resistance should have a very low resistance. Pandey conversion of galvanometer to voltmeter object. Oct 03, 2017 conversion of galvanometer into an ammeter. How can a galvanometer be converted into a ammeter and. Conversion of a galvanometer into ammeter and voltmeter conversion of a galvanometer into an ammeter conversion of galvanometer into ammeter.
Conversion of a galvanometer into ammeter and voltmeter ammeter. Conversion of galvanometer into an ammeter lets learn nepal. Dec 16, 2011 this is kind of a stupid question measure high currents, a galvanometer is connected parallel to a shunt resistance so that most of the current passes through the shunt resistance but only a small amount of current passes through the galvanometer. Conversion of galvanometer into ammeter and voltmeter learnnext. Conversion of galvanometer to ammeter and voltmeter youtube.
Notes on conversion of a galvanometer into ammeter and. Difference between galvanometer and ammeter in tabular form. An ammeter is a device that is used to measure the current going through the device. Mar 16, 2008 why we convert a galvanometer into voltmeter and ammeter. To convert a galvanometer into a voltmeter, a high resistance r is connected in a series with the coil of galvanometer. Let g be the resistance of the galvanometer, i be the maximum current to be measured by the ammeter, and ig be the maximum current that can be passed through the galvanometer. The value of the resistance which can convert this galvanometer into ammeter giving a full scale deflection for a current of 10 a, is.
He showed that the needle of a magnetic compass deflects near a wire that has electric current flowing through it. Learn conversion of galvanometer into ammeter, physics, sabaq foundation. Apr 16, 2010 the galvanometer is a very sensitive type of ammeter anyway, typically measuring currents in the order of micro amps. A galvanometer acts like an ideal ammeter in series with a moderately small resistance. Galvanometer types, working principle, moving coil. The question is a bit ambiguous, but im going to approach it by assuming you mean that you want to turn a microammeter into a ammeter measuring many amps, although quite why you would want to do it this is a bit iffy. Construction of a voltmeter and an ammeter from a galvanometer construction of a voltmeter and an ammeter from a galvanometer objective materials 1. Well email you at these times to remind you to study. When a current flows through it then torque acts on it.
Current in shunt is i 91010 i 9i the voltage across shunt resistance is. A galvanometer of resistance rg is to be converted into an ammeter, with the. It is used in analog electronics lab as scientific instrument depending upon the diverse requirements of patrons. The shunt resistance required to convert the galvanometer into ammeter of range i is calculated using the formula, g the resistance of the galvanometer. Let g be the resistance of the galvanometer and ig be the current for full scale deflection in the. When a low resistance called shunt is connected in parallel with galvanometer, the net resistance becomes smaller and galvanometer gives full deflection for higher values of current.
Viva voce on galvanometer to ammeter or voltmeter q. This is kind of a stupid question measure high currents, a galvanometer is connected parallel to a shunt resistance so that most of the current passes through the shunt resistance but only a small amount of current passes through the galvanometer. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit. It also gives the direction of current in a circuit and can measure small amount of current.
A galvanometer is an electrical device which detect the electric current in a circuit. R is the resistance to be connected in series with galvanometer resistance g. So i read it and found that to convert a galvanometer to ammeter we connect a very low value resistance in parallel to the galvanometer and to convert it to voltmeter we connect a very high value resistance in series with the. Conversion of galvanometer to ammeter problem ask physics. Construction of a voltmeter and an ammeter from a galvanometer. Modern galvanometers are constructed with a small moveable pivoting coil of wire. Study alisons electrical course and learn about the equipment and tools that enable an electrician to test and maintain electrical installations. A weston type galvanometer, a voltmeter of 03 v range, a battery eliminator, two resistance boxes, the one way continue reading converting the.
In this video, i have discussed the conversion of a galvanometer into ammeter and voltmeter. The most significant difference between the galvanometer and ammeter is that the galvanometer show both the direction and the magnitude of the current, whereas the ammeter only shows the magnitude of the current. Value of shunt is so adjusted that most of the current passes. A galvanometer with the shunt wire will now work as an ammeter with the range i. It has a coil pivoted or suspended between concave pole faces of a. You can download free conversion of galvanometer to ammeter class 12 video edurev pdf from edurev by using search above. I am in 12th std and while reading my physics textbook i came across a topic called conversion of a galvanometer to ammeter and voltmeter. In order to convert a galvanometer into an ammeter, a very low resistance known as shunt resistance is connected in parallel to galvanometer. It can be converted into an ammeter by connecting a low resistance called shunt resistance in parallel to the galvanometer.
Evaluating the shunt resistance required to convert a galvanometer with a given full scale deflection to an ammeter of specified range. Conversion of a galvanometer into ammeter and voltmeter kullabs. In this article, we are going to discuss what are galvanometer and ammeter, the working principles of galvanometer and ammeter, the similarities and finally the difference between galvanometer and ammeter. Voltmeter and ammeter design using galvanometer in labobjective. Where, s shunt resistance and i s current across the shunt. Vg ig when the galvanometer is converted into an ammeter of range 10i by applying a shunt resistance s g9, the current is divided in inverse ratio of their resistance 19. Thus, to measure large currents it is converted into an ammeter.
Visual lessons would help explain some missing details. The current to be measured must pass through it, hence, it is connected in series combination. A fullscale reading will require a relatively small amount of current. Class12 icse board conversion of galvanometer into ammeter and voltmeter learnnext offers animated video lessons with neatly explained examples, study material, free ncert solutions, exercises and tests. Mar 26, 2012 a galvanometer can be converted to ammeter by connecting a low resistance, called shunt in parallel with it. To convert a galvanometer in an ammeter, we connect a low resistance called shunt across the coil of the galvanometer. Galvanometer is too sensitive therefore is modified to be used to measure current instead of only detect it. A galvanometer can be converted into a ammeter by connecting a shunt resistance in parallel to it.
How can be a galvanometer can be converted into ammeter. Wikipedia a galvanometer can be converted to ammeter by connecting a low resistance, called shunt in parallel with it. Conversion of galvanometer to ammeter in hindi, what is galvanometer, what is ammeter, circuit diagram of ammeter, working of ammeter in hindi,example on ammeter. A galvanometer is an electrical device which detects the electrical current in a circuit.
How can you convert a galvanometer into a voltmeter. Galvanometers work according to the observations made by hans oersted. For the conversion of galvanometer to voltmeter gv a high resistance r is connected in series of galvanometer. To convert the given galvanometer into a voltmeter of desired range and to verify the same. Conversion of galvanometer to ammeter class 12 video edurev. Study alisons electrical studies diploma course and learn all about the electrical trade from topics such as electrical safety to electrical theory. Conversion of galvanometer in english physics video lectures. Anyway, i do understand how a galvanometer is converted into an ammeter but its logic doesnt seem to add up. Conversion of galvanometer into ammeter and voltmeter. In this video we will know the conversion of galvanometer into ammeter and voltmeter. To overcome this difficulty, a low resistance ie, shunt is connected in parallel with this instrument. The electrical connections must be the same as in the circuit diagram. Converting the given galvanometer into a voltmeter of.
Value of shunt is so adjusted that most of the current passes through the shunt. Nov 28, 2016 galvanometer, ammeter and voltmeter physics lab manualncert solutions class 12 physics sample papers galvanometer a galvanometer is a device instrument used for detecting feeble electric voltage, currents in a circuit. To make a galvanometer into an ammeter, connect yahoo answers. A good instrument shop might be able to convert your ammeter to act as a voltmeter, but it isnt a project for the typical doityourselfer. A galvanometer is converted into an ammeter by connecting it in parallel with a low resistance called shunt resistance. A galvanometer is an electrical instrument for detecting and measuring electric current. The galvanometer is a very sensitive type of ammeter anyway, typically measuring currents in the order of micro amps. An ammeter is an instrument used to measure the current passing through a circuit.
I am guessing that you encounter this in a physics class. What range should my ammeter be reading when i test it for continuity. The question is a bit ambiguous, but im going to approach it by assuming you mean that you want to turn a micro ammeter into a ammeter measuring many amps, although quite why you would want to do it this is a bit iffy. Subtract the resistance of the galvanometer if it is known. Spread the loveyou can also get class xii practicals on biology, physics, and physical education. Converting the given galvanometer into a voltmeter of desired. Click here to visit our frequently asked questions about html5. Jul 05, 2017 galvanometer into voltmeter,current electricity,physcis class 12 pls like and share this vedio subscribe to our channel for more vedios like this. Conversion of a galvanometer to ammeter and voltmeter. This document is highly rated by jee students and has been viewed 4105 times. For the conversion of galvanometer to ammeter ga a low resistance shunt resistance s is. The potential difference between the voltage and the shunt resistance are equal.
How to convert a galvanometer into ammeter in hindi. In this way a galvanometer is converted into ammeter and can measure heavy currents without fully deflected. It has a coil pivoted or suspended between concave pole faces of a strong laminated horse shoe magnet. I the range of desired ammeter ig nk, the current required for full scale deflection in the galvanometer, where, n total number of divisions in the galvanometer. Why do we convert a galvanometer into voltmeter and ammeter. Conversion of galvanometer into an ammeter the galvanometer is used as an ammeter by connecting the low resistance wire in parallel with the galvanometer. It is a low resistance galvanometer, used to measure current in a circuit. Conversion of a galvanometer to an ammeter example physics. A galvanometer measures electrical current and is an analog electromechanical transducer that will deflect a gauge of limited arc based on the current.
An ammeter has a shunt built into it to pass the majority of the heavy current required by the cars electrical system, and only a miniscule amount of current actually makes the ammeter needle move. Suitable shunt resistance is chosen depending on the range of the ammeter. A moving coil galvanometer is converted into an ammeter and a voltmeter to connect a low resistance and high resistance respectively. Conversion of galvanometer into ammeter and voltmeter youtube. For the conversion of galvanometer to ammeter ga a low resistance shunt resistance s is connected parallel to galvanometer. Feb 22, 2018 galvanometer is used as a sensor of current,and voltmeter is something used to measure the potential drop across a resistance or combination of resistance or a cell and a resistance,which contains high resistance,so that a little current will pass through it and we will be able to measure the potential drop using rule of parallel resistance in. The galvanometer is used as an ammeter by connecting the low resistance wire in parallel with the galvanometer. Conversion of galvanometer into ammeter a galvanometer can be converted into an ammeter device measuring the current flowing through a conductor by connecting a low resistance called shunt resistance in parallel to the galvanometer as shown in the figure. Dec 27, 2019 shunt is a low resistance connected in parallel with the galvanometer or ammeter. It is an analog electromechanical actuator that produces a rotary deflection of some type of pointer in response to electric current through its coil in a magnetic field. The reason why students are asked to do this is more pedagogical in nature, i. To current a galvanometer into an ammeter, a very small resistance is connected in the parallel with the galvanometer. Conversion of galvanometer to ammeter physics forums.
In order to prevent the high current through galvanometer we add a low resistance parallel to galvanometer to make an ammeter. Dec 28, 2017 spread the loveyou can also get class xii practicals on biology, physics, and physical education. A weston type galvanometer, a voltmeter of 03 v range, a battery eliminator, two resistance boxes, the one way continue reading converting the given galvanometer into a. Galvanometer, ammeter and voltmeter physics lab manualncert solutions class 12 physics sample papers galvanometer a galvanometer is a device instrument used for detecting feeble electric voltage, currents in a circuit. A galvanometer can be converted into ammeter by connecting a small shunt resistance in parallel, this allows maximum current to pass through the shunt and very small current through the galvanometer. If the current flowing in a circuit is strong, a galvanometer or an ammeter cannot be put directly in it because the instrument may be damaged. To convert the given galvanometer of known resistance and of the known figure of merit into an ammeter of the desired range and to verify the same. Since galvanometer is a very sensitive instrument therefore it cant measure heavy currents. To make a galvanometer into an ammeter, connect yahoo. How to convert, galvanometer into a voltmeter physics. Pandey conversion of galvanometer to ammeter object. The other differences between the galvanometer and the ammeter are shown below in the comparison chart.
A galvanometer is a device used to detect feeble electric currents in a circuit. Conversion of galvanometer into voltmeter authorstream. It also gives the direction of flow of current in a circuit. Conversion of galvanometer into voltmeter electronics laboratory equipment to convert a voltage to a current, use ohms law to select the resistor. This video explains how to convert the given galvanometer of known resistance and figure of merit into an ammeter of desired range and to.
Conversion of galvanometer to ammeter meity olabs youtube. To convert weston galvanometer to a ammeter of current range 0 to a amp. To convert a galvanometer into a voltmeter, a high resistance r is connected in a. Conversion of galvanometer into voltmeter in hindi youtube. Conversion of galvanometer into a voltmeter lets learn nepal. So, the ammeter parallel combination of galvanometer and shunt resistance will have low r. A galvanometer can be converted into ammeter by connecting a small shunt resistance in parallel, this allows maximum current to pass through the shunt and. Hello student, welcome you on my youtube channel r s bisht the tutor. Difference between galvanometer and ammeter compare the. To observe maximum and minimum deflection in the galvanometer, insert the key and adjust the rheostat.
1087 812 315 1499 529 1281 1404 301 546 1320 641 325 828 1001 1108 317 1410 1406 1420 286 278 1382 167 345 917 927 582 649 261 669 336 1458 1349 982 140 1129 924 1296 1413 470