AC Voltage Applied to a Resistor
AC Voltage Applied to a Resistor: Overview
This topic consists of various concepts like Average Value of a Function,AC Circuit,RMS Value of Alternating Current, etc.
Important Questions on AC Voltage Applied to a Resistor
A capacitor is connected to source. The capacitive reactance and the RMS current would be:

The instantaneous current and voltage of an AC circuit are given by and . The power dissipation in the circuit is

A resistor of and a capacitor of 15.0 are connected in series to a 220 V, 50 Hz a.c. source. Calculate
(i) The current in the circuit.
(ii) The rms voltage across the resistor and the capacitor.

The instantaneous current and voltage of an a.c. circuit are given by and . What is the power dissipation in the circuit?

A standard filament lamp consumes when connected to ac mains supply. Calculate the peak current through the bulb.

The given graph comprises of semi elliptical curves in every time interval. The average value of current between

In the given AC circuit, find maximum current through the capacitor

Write the rms value of potential difference from the given figure

The RMS value of the time varying current from to is

Find the rms and average value of

A modulating signal is added to the carrier signal
for amplitude modulation. The combined signal is passed through a non-linear square law device. The output is then passed through a band pass filter. The bandwidth of the output signal of band pass filter will be .

If, then the R.M.S. value of current from to seconds is

In an AC circuit, the current is given by the equation . Calculate the time taken to reach from zero to first maximum value.

Calculate the RMS value of the emf for a cycle, whose time variation is shown in figure.

The variation of the instantaneous current and the instantaneous emf in a circuit are shown in the figure. Which of the following statements is correct?

An alternating current is given by . The RMS current is given by

An current is given by the expression, in amperes. The frequency and RMS value of the current respectively are

The INCORRECT statement is.

A circuit shown consists of three resistors, one capacitor, ideal voltmeters and an alternating voltage source of angular frequency . Take . If the reading of is , then the reading of is

A resistance of is connected to a source of alternating current rated . Find the time taken by the current to change from its maximum value to the rms value
