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VITEEE 2011 Solved Paper

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Question : 14

Total: 120

A solenoid has 2000 turns wound over a length of 0.30 m . The area of its cross-section is 1.2 x 10−3m2. Around its central section, a coil of 300 turn is wound. If an initial current of 2 A in the solenoid is reversed in 0.25 s, then the emf induced in the coil is

6 × 10−4 V
4.8 × 10−3 V
6 × 10−2 V
48 mV

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