CONVERSION OF GALVANOMETER INTO AMMETER AND VOLTMETER PDF

Conversion of a Galvanometer into Ammeter and Voltmeter. Voltmeter: It is a high resistance galvanometer, used to measure potential. Conversion of a galvanometer into voltmeter & Ammeter. 1. KAMALJEETH INSTRUMENTS. Experiment S. GALVANOMETER AND ITS. CONVERSION . Voltmeter and Ammeter. Objective: (a) To convert a galvanometer into a voltmeter reading up to V volts and calibrate it. (b) To convert a galvanometer into an.

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kf I understand why the shunt resistance has to be of a smaller value and the resistance of voltmeter has to be of a really greater value but what I fail to comprehend is how can we successfully measure voptmeter when the deflection of the needle is going to always be maximum due to the passage of Ig current.

For this purpose, it is put in series with the circuit in which the current is to be measured.

Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Retrieved 1 Januaryfrom amrita. Remember that the galvanometer doesn’t “hog” all the current if the current is a low value. A galvanometer can ammdter only small currents. Now Rs is of such a value voltmeger Ig passes through the galvanometer and the remaining current I-Ig passes through the shunt resistance.

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shunt – Converting a galvanometer into an Ammeter – Electrical Engineering Stack Exchange

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What is figure of merit of a galvanometer? It is represented by the symbol k and is given by the equation.

The current always splits inversely to the ratio votlmeter the reaistances. If Ig is less than Ig maxthe needle will stay somewhere in between. What is an Ammeter? Anyway, I do understand how a galvanometer is converted into an ammeter but it’s logic doesn’t seem to add up.

Conversion of Galvanometer to Ammeter (Theory) : Class 12 : Physics : Amrita Online Lab

By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. It can be converted into an ammeter by connecting a low resistance called shunt resistance in parallel to the galvanometer.

Maximum deflection occurs at Ig max.

I am 12th grader just in case. Sign up using Email and Password.

You understood this part wrong. For the voltmeteg rated A, Ig max will be reached when measured current is A. Converting a galvanometer into an Ammeter Ask Question. How to convert a Galvanometer into an Ammeter?

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Our Objective:

Whiskeyjack 3, 2 17 Galvanometer Ammeter Figure of merit Shunt resistance How a galvanometer can be converted into an ammeter. Conversion of Galvanometer to Ammeter. Post as a guest Name. Deflection of needle is not always going to be maximum.

The figure of merit of a galvanometer is defined as the current required in producing a unit deflection in the scale of the galvanometer. This is what I know so far.

I understand why the shunt resistance has to be of a smaller value and the resistance of voltmeter has to be of a really greater value but what I fail to comprehend is how can we successfully measure current when the deflection of the needle is going to always be maximum due to the passage of Ig current Remember that the galvanometer doesn’t “hog” all the current if the current is a low value.

When an electric current passes through the coil, it deflects. When you are designing the ammeter, you need to select a value of Rs depending upon the max current you intend to measure.