In an AC generator, a coil with N turns, all of the same area A and total resistance R,
In an AC generator, a coil with N turns, all of the same area A and total resistance R, rotates…
6 years ago
Alternating Current
In a series resonant LCR circuit, the voltage across R is 100 volts and R =1kΩ
In a series resonant LCR circuit, the voltage across R is 100 volts and R =1kΩ with C= 2 μF.…
6 years ago
An LCR circuit contains resistance of 100 ohm and a supply of 200 volt at 300 radian
An LCR circuit contains resistance of 100 ohm and a supply of 200 volt at 300 radian angular frequency. If…
6 years ago
An alternating voltage of 220 V, 50 Hz frequency is applied across a capacitor
An alternating voltage of 220 V, 50 Hz frequency is applied across a capacitor of capacitance 2 μF. The impedence…
6 years ago
An inductor is connected to an a.c. source when compared to voltage,
An inductor is connected to an a.c. source when compared to voltage, the current in the lead wires Options (a)…
6 years ago
In a LCR series circuit, the potential difference between the terminals of the inductor
In a LCR series circuit, the potential difference between the terminals of the inductor is 60 V, between the terminals…
6 years ago
The rms current in an AC circuit is 2 A. If the wattless current be √3 A,
The rms current in an AC circuit is 2 A. If the wattless current be √3 A, what is the…
6 years ago
Eddy currents are used in
Eddy currents are used in Options (a) Induction furnace (b) Electromagnetic breaks (c) Speedometers (d) All of these Correct Answer:…
6 years ago
The wing span of an aeroplane is 20 m. It is flying in a field where the vertical
The wing span of an aeroplane is 20 m. It is flying in a field where the vertical component of…
6 years ago
An electric motor runs on DC source of emf 200 V and draws a current of 10 A.
An electric motor runs on DC source of emf 200 V and draws a current of 10 A. If the…
6 years ago