A coil of resistance and 1.0 H inductance is connected to an a.c. source of frequency
A coil of resistance and 1.0 H inductance is connected to an a.c. source of frequency 200/2π Hz. Phase angle…
7 years ago
Electromagnetic Induction
Electromagnetic induction is not used in
Electromagnetic induction is not used in Options (a) speedometer (b) transformer (c) AC generator (d) room heater Correct Answer: room…
7 years ago
A solenoid of length l metre has self inductance L henry. If number of turns
A solenoid of length l metre has self inductance L henry. If number of turns are doubled, its self inductance…
7 years ago
A short circuited coil is placed in a magnetic field varying with time. Electrical
A short circuited coil is placed in a magnetic field varying with time. Electrical power is dissipated due to the…
7 years ago
A coil of resistance 10 Ω and an inductance 5 H is connected to a 100 volt
A coil of resistance 10 Ω and an inductance 5 H is connected to a 100 volt battery. The energy…
7 years ago
A horizontal straight conductor kept in north-south direction falls under gravity. Then
A horizontal straight conductor kept in north-south direction falls under gravity. Then Options (a) No e.m.f. is induced along the…
7 years ago
A coil of N turns and mean cross-sectional area A is rotating with uniform angular
A coil of N turns and mean cross-sectional area A is rotating with uniform angular speed ω about an axis…
7 years ago
A coil of inductive reactance 31 Ω has a resistance of 8 Ω. It is placed in series
A coil of inductive reactance 31 Ω has a resistance of 8 Ω. It is placed in series with a…
7 years ago
A device which converts electrical energy into mechanical energy is
A device which converts electrical energy into mechanical energy is Options (a) Electric motor (b) Induction coil (c) Dynamo (d)…
7 years ago
A coil of 100 turns carries a current of 5 mA and creates a magnetic flux of 10⁻⁵ Wb.
A coil of 100 turns carries a current of 5 mA and creates a magnetic flux of 10⁻⁵ Wb. The…
7 years ago