Home
Class 12
PHYSICS
A small signal voltage V(t) = V(0)sin om...

A small signal voltage V(t) = `V_(0)sin omegat` is applied across an ideal capacitor C

A

Current l(t) leads voltage V(t) by `180^(@)`

B

Current l(t) lags voltage V(t) by `90^(@)`

C

Over a full cycle the capacitor C does not consume any energy from the voltage source

D

Current l(t) is in phase with voltage V(t)

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

Explain the term 'capacitive reactance'.Show graphically the variation of capacitive reactance with frequency of the applied alternating voltage. An a.c. voltage E=E_(0) sin omegat is applied a across a pure capacitor C .Show mathematically that the current flowing through it leads the applied voltage by a phase angle of pi//2

Explain the term 'inductive reactance'.Show graphically the variation of inductive reactance with frequency of the applied alternating voltage. An a.c. voltage E=E_(0)sin omegat is applied across a pure inductor L .Show mathematically that the current flowing through it lags behind the applied voltage by a phase angle of pi//2 .

When a voltage V = V_(0) cos omegat is applied across a resistor of resistance R, the average power dissipated per cycle in the resistor is given by

A time varying voltage V= 2t (Volt) is applied across and ideal inductor of inductance L =2H as shown in Fig. Then (assume current to be zero at t =0)

A circuit contains resistance R and an inductance L in series. An alternating voltage V=V_0sinomegat is applied across it. The currents in R and L respectively will be .

A circuit contains resistance R and an inductance L in series. An alternating voltage V=V_0sinomegat is applied across it. The currents in R and L respectively will be .

An alternating potential V = underset(o)(V) sin omega t is applied across a circuit. As a result the current, I = underset(o)(I)sin(omegat - pi/2) flows in it. The power consecutive in the circuit per cycle is

In an AC circuit, voltage V = V_(0)sin omegat and inductor L is connected across the circuit. Then the instantaneous power will be

An alternating voltage given as, V=100sqrt(2)sin100t V is applied to a capacitor of 1muF . The current reading of the ammeter will be equal to ................ mA.

An ac source of voltage V=V_(m)sin omega t is connected across the resistance R as shown in figure. The phase relation between current and voltage for this circuit is