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In the meter bridge shown below the null point is at 40 cm from A, if R is shunted 2Ω, find the distance of new balance point from A.

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+1 vote
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in Physics by (36.2k points)

In the meter bridge shown below the null point is at 40 cm from A, if R is shunted 2Ω, find the distance of new balance point from A.

(1) 22.7 cm

(2) 60 cm

(3) 62.5 cm

(4) 60.5 cm

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1 Answer

+1 vote
by (35.1k points)

Correct option is (3) 62.5 cm

\(\frac 2{40} = \frac R{60}\)

R = 3Ω

If R is shunted by 2Ω

If R is shunted by 2Ω

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