JEE PHYSICS MCQ: CURRENT ELECTRICITY

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Application +4 | -1

When an unknowns resistance

6\,\Omega

are connected in the left and right gaps of a meter bridge, the balance point is obtained at 50cm. If

3\,\Omega

resistance is connected in parallel to resistance in right gap, the balance point is

View answer and explanation

Correct option: B

Increase by 25 cm

Option B (Increase by 25 cm) is correct because connecting a resistor in parallel changes the balance point, and the new balance point is 75 cm, which is an increase of 25 cm from the original 50 cm.

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