Current Electricity

Question: AB is a wire of uniform resistance. The galvanometer G shows no current when the length AC = 20cm and CB = 80 cm. The resistance R is equal to

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1) $2\,\Omega $

2) $8\,\Omega $

3) $20\,\Omega $

4) $40\,\Omega $

Solution:

Explanation: No Explanation

Different Measuring Instruments Potentiometer Meter Bridge

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