Home
Class 12
PHYSICS
Time constant of the given circuit is ta...

Time constant of the given circuit is `tau` If the battery is replaced by an ac source having voltage `V = V_0cosomegat` , power factor or the circuit will be

A

`omegaT`

B

`1/(sqrt(1+(omegatau)^2))`

C

`sqrt(1-(omegatau)^2)`

D

None

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

In an AC circuit, the power factor

In an AC circuit, the power factor

In an electrical circuit R,L, C and a.c voltage source are all connected in series. When L is removed from the circuit , the phase difference between the voltage and current in the circuit is π/6. If instead ,C is removed from the circuit , the phase difference is again π/6 . The power factor of the circuit is

In an electrical circuit R,L,C and an AC voltage source are all connected in series. When L is removed from the circuit, the phase difference between the voltage and the current in the circuit is pi//3 . If instead, C is removed from the circuit, difference the phase difference is again pi//3 . The power factor of the circuit is

In an electrical circuit R,L,C and an AC voltage source are all connected in series. When L is removed from the circuit, the phase difference between the voltage and the current in the circuit is pi//3 . If instead, C is removed from the circuit, difference the phase difference is again pi//3 . The power factor of the circuit is

A battery having 12V emf and internal resistance 3Omega is connected to a resistor. If the current in the circuit is 1A, then the resistance of resistor and lost voltage of the battery when circuit is closed will be

In an AC circuit with voltage V and current I , the power dissipated is

The adjoining figure shows an AC circuit with resistane R , inductance L and source voltage V_S . Then

In the circuit below, the AC source the voltage V=20cos (omegat) volts with omega=2000rad//sec . The amplitude of the current will be nearest to

The maximum voltage in DC circuit is 282 V. the effective voltage in AC circuit will be