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AI Gen: Current Electricity question bank (Physics)

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Q1.

A wire of resistance 20 Ω is drawn out so that its length is increased to twice its original length. Assuming uniform density, the new resistance of the wire is:

Topic: Current Electricity | Source: AI Generated (NEET)

(A)
40 Ω
(B)
80 Ω
(C)
20 Ω
(D)
10 Ω
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Q2.

In a meter bridge experiment, the null point is obtained at 40 cm from the left end when a known resistance of 12 Ω is connected in the right gap. The unknown resistance in the left gap is:

Topic: Current Electricity | Source: AI Generated (NEET)

(A)
8 Ω
(B)
18 Ω
(C)
12 Ω
(D)
6 Ω
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