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Find the induced EMF in an inductor of 2mH and the current rate is 2000 units. (a) 4 (b) -4 (c) 1 (d) -1 This question was posed to me in an international level competition. I would like to ask this question from Magnostatic Energy in division Magnetostics of Electromagnetic Theory Select the correct answer from above options Electromagnetic Theory questions and answers, Electromagnetic Theory questions pdf, Electromagnetic Theory question bank, Electromagnetic Theory questions and answers pdf, mcq on Electromagnetic Theory pdf,electromagnetic theory book pdf,electromagnetic theory pdf notes,electromagnetic theory lecture notes,electromagnetic theory of light,maxwell electromagnetic theory,electromagnetic theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel

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The correct option is (b) -4 The best I can explain: The induced emf is given by e = -Ldi/dt. Put L = 2 x 10^-3 and di/dt = 2000 in the equation. We get e = -2 x 10^-3 x 2000 = -4 units.

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