JEE PHYSICS MCQ: CURRENT ELECTRICITY

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In a meter bridge, the gaps are closed by resistance 2 and 3 ohms. The value of shunt to be added to 3 ohm resistor to shift the balancing point by

22.5\,cm

View answer and explanation

Correct option: B

2\,\Omega

Option B (

2\,\Omega

) is correct because it provides the correct shunt resistance value needed to shift the balancing point by 22.5 cm, based on the Wheatstone bridge principle.

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\mathrm{\rho }

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, which is order of colour coding on carbon resistors? Two wires that are made up of two different materials whose specific resistance are in the ratio

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