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Electromagnetic Induction And Alternating Currents Questions

Practice 4 Electromagnetic Induction And Alternating Currents questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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About Electromagnetic Induction and Alternating Currents โ€” practice questions, PYQs & concepts

Electromagnetic Induction and Alternating Currents is a frequently-tested topic on Physics. ExamTest.live currently lists 4 Electromagnetic Induction and Alternating Currents questions, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year โ€” every answer key is free, no sign-up required.

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All Electromagnetic Induction And Alternating Currents Questions(1โ€“4 of 4)

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Q1mediummcqPhysicsPhysics
A transistor-oscillator using a resonant circuit with an inductance (of negligible resistance) and a capacitance has a frequency . If is doubled and is changed to , the frequency will be:
Q2easymcqPhysicsPhysics
The core of a transformer is laminated because :
Q3easymcqPhysicsPhysics
Two coils of self-inductance and are placed so close together that the effective flux in one coil is completely linked with the other. The mutual inductance between these coils is:
Q4mediummcqPhysicsPhysics
A coil of inductive reactance has a resistance of . It is placed in series with a condenser of capacitive reactance . The combination is connected to an a.c. source of . The power factor of the circuit is:

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