Physics MCQs for NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc. Part 4
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Question:
The instantaneous value of an AC is given by . The rms value of current is
Question:
Inductive reactance of a coil expressed as
- Ampere
- Ohm
- Volt
- Weber
Question:
The average value of alternating current over a complete cycle is
Question:
A induction may store energy in
- Its electric field
- Its coils
- Its magnetic field
- Both electric and magnetic fields
Question:
Two different coils have self-inductance . The current in both coils are increased at same constant rate. The ratio of the induced emf in the coil is
Question:
A coil of resistance 50 and inductance 4H is connected to a 10V battery. The energy stored in the coil
Question:
Two coils of self-inductance are placed close together so that effective flux in one coil is completely linked with the other. If is the mutual inductance between them, then
Question:
The instrument which works on the principle of mutual induction is
- Galvanometer
- Ammeter
- Potentiometer
- Transformer