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In the circuit shown, the length of AB i...

In the circuit shown, the length of AB is 100 cm. The length`j_1` for which the galvanometer shows zero deflection is __________ cm.

Text Solution

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`1=50/100=0.5 Now 100-72 times 1/2=l_1 times 100/1000 times 800/100 implies l_1=80 cm`
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