Electromagnetic Induction & Alternating Currents (AIIMS (All India Institute of Medical Sciences) Physics): Questions 44 - 48 of 51

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Question number: 44

» Electromagnetic Induction & Alternating Currents » Electromagnetic Induction

MCQ▾

Question

A rod of magnetic material having dimension is subjected in magnetizing field of then a magnetic moment of is induced in it. Therefore magnetic induction in rod is –

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d.

Question number: 45

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

Appeared in Year: 1995

MCQ▾

Question

Dimension of a rectangular coil is . Number of turns in coil is 60. It is rotating about its one of the diameter in an uniform magnetic field of , with the speed 1800 r. p. m. the maximum induced emf is – [RPMT]

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113 V

Question number: 46

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

Appeared in Year: 1998

MCQ▾

Question

Two coil have a mutual inductance . The current changes in first coil according to equation , where and . The maximum value of induced emf in second coil is – (AIPMT)

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Question number: 47

» Electromagnetic Induction & Alternating Currents » AC Generator and Transformer

Appeared in Year: 2003

MCQ▾

Question

A generator produces a voltage where V is in volts and in second. The frequency and r. m. s voltage are – [RPMT]

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Question number: 48

» Electromagnetic Induction & Alternating Currents » Alternating Currents

MCQ▾

Question

Alternating voltage is applied across the resistance . The rms value of current is equal to –

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Choice (4) Response

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