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  4. To verify Ohm's law, a student is provided with a test resistor RT , a high resistance R1 , a small resistance R2 , two identical galvanometers G1 and G2 , and a variable voltage source V . The correct circuit to carry out the experiment is <style type=text/css><!-- @page margin: 2cm P margin-bottom: 0.21cm --> </style>

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Q. To verify Ohm's law, a student is provided with a test resistor $ \, R_{T}$ , a high resistance $R_{1}$ , a small resistance $R_{2}$ , two identical galvanometers $G_{1}$ and $G_{2}$ , and a variable voltage source $V$ . The correct circuit to carry out the experiment is

NTA AbhyasNTA Abhyas 2022

Solution:

We will require a voltmeter, an ammeter, a test resistor and a variable battery to verify Ohm's law.
Voltmeter which is made by connecting a high resistance with a galvanometer is connected in parallel with the test resistor.
Further, an ammeter which is formed by connecting a low resistance in parallel with galvanometer is required to measure the current through test resistor.