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BITSAT 2020
MCQ (Single Correct Answer)
+3
-1
A potentiometer wire, 10 m long, has a resistance of 40$$\Omega$$. It is connected in series with a resistance box and a 4 V storage cell. If the potential gradient along the wire is 0.4 mV cm$$-$$1, the resistance unplugged in the box is
Questions Asked from Current Electricity (MCQ (Single Correct Answer))
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