Physics, asked by ranitadas2510, 10 months ago

kindly solve it with full explanation.

promise to mark you as brainliest

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Answered by sashikantchoubey

Answer:

the current will increase because when the key is closed the equivalent resistance will decrease , and so current will increase.. so option ' a ' is correct.. before closing the equivalent resistance is 1.5R after closing the key the equivalent resistance is 1.25R .

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