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Q.

The four arms of a Wheatstone bridge have resistances as shown in the figure. A galvanometer of 15↨ resistance is connected across BD. Calculate the current through the galvanometer when a potential difference of 10 V is maintained across AC.
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a

2.44µA

b

4.87mA

c

4.87µA

d

2.44mA

answer is A.

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Detailed Solution

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Apply KCL at B and at D

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