Current Electricity

JEE Main level, numerical answer, medium

293 of 380

Question 293 of 380

Consider a 72cm72cm long wire ABAB as shown in the figure. The galvanometer jockey is placed at PP on ABAB at a distance xcmxcm from AA. The galvanometer shows zero deflection.

The value of xx, to the nearest integer, is

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Answer: 48

In balanced conditions,
126=x72−x\dfrac{12}{6}=\dfrac{x}{72-x}
⇒x=48cm\Rightarrow x=48cm.

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