Electromagnetic Induction and Alternating Currents Questions
4 Electromagnetic Induction and Alternating Currents questions from Physics with detailed answers and explanations. Free previous year questions and MCQs.
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Electromagnetic Induction and Alternating Currents โ Physics(1โ4 of 4)
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A transistor-oscillator using a resonant circuit with an inductance L (of negligible resistance) and a capacitance C has a frequency f. If L is doubled and C is changed to 4C, the frequency will be:
Q2easymcqPhysicsPhysics
The core of a transformer is laminated because :
Q3easymcqPhysicsPhysics
Two coils of self-inductance 2mH and 8mH 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 31ฮฉ has a resistance of 8ฮฉ. It is placed in series with a condenser of capacitive reactance 25ฮฉ. The combination is connected to an a.c. source of 110V. The power factor of the circuit is:
Physics Electromagnetic Induction and Alternating Currents โ FAQ
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Our database has 4 Electromagnetic Induction and Alternating Currents questions from Physics.
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The 4 Physics Electromagnetic Induction and Alternating Currents questions include 2 easy, 2 medium and 0 hard level questions.
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