AC Voltage Applied to a Resistor

A $15.0$ $\text{μF}$  capacitor is connected to $220$ $\text{V,}$ $50$ $\text{Hz}$ source. The capacitive reactance and the RMS current would be:

The instantaneous current and voltage of an AC circuit are given by $\mathrm{i}=10\sin \left(314\mathrm{t}\right) \mathrm{A}$ and $\mathrm{V}=100\sin \left(314\mathrm{t}\right) \mathrm{V}$. The power dissipation in the circuit is

If $E=500\sin \left(100\pi t\right)$ Volt, then the time taken to reach the maximum point from zero.

The average value of current $i=I_{\mathrm{m}}\sin \omega t$ from $t=\frac{\pi }{2\omega }$ to $t=\frac{3\pi }{2\omega }$ is how many times of $I_{\mathrm{m}}$?

The mean value of current $I=I_0\cos \omega t$ from $t=0 \mathrm{to} t=\frac{\mathrm{\pi }}{\omega }$ is

An $\mathrm{AC}$ current is given as $i=(2\cos \omega t+3\sin \omega t)\mathrm{A}.$ The rms current is

An alternating voltage $E=200\sqrt{2}\sin \left(100\mathrm{t}\right)$ is connected to a $1$ micro farad capacitor through an AC ammeter. The reading of the ammeter shall be:

Chose the correct phasor diagram for a purely resistive a.c. circuit.

Which graph represents the true resistive a.c. circuit?

Assertion : The alternating current lags behind the e.m.f. by a phase angle of $\frac{\pi }{2}$, when AC flows through an inductor.
Reason : The inductive reactance increases as the frequency of AC source decreases.

Assertion: In a purely resistive ac circuit instantaneous power varies sinusoidally.

Reason: Applied ac voltage varies sinusoidally.

A sinusoidal voltage $v=200\sin 314t$ is applied to a resistor of $10\Omega$ resistance. Calculate the power dissipated as heat in $\mathrm{watt}$.

A sinusoidal voltage $v=200\sin 314t$ is applied to a resistor of $10 \Omega$ resistance. Calculate the rms value of the current.

A sinusoidal voltage $v=200\sin 314t$ is applied to a resistor of $10\Omega$ resistance. Calculate the rms value of the voltage.

A sinusoidal voltage $v=200\sin 314t$ is applied to a resistor of $10\Omega$ resistance. Calculate the frequency of the supply.

$\mathrm{Rms}$(Root mean square) value of AC supplied voltage is ________value of voltage.

An AC voltage $\mathrm{E}=200 \sin 314\mathrm{t}$ is supplied to resistor of resistance $20 \mathrm{\Omega }$. What is average value of current during time interval $\mathrm{t}=0 \mathrm{to} \mathrm{t}=\raisebox{1ex}{$\mathrm{T}$}\!\left/ \!\raisebox{-1ex}{$2$}\right.$.

An $LC$ circuit contains $196 \mathrm{pF}$ capacitor and a $441 \mathrm{\mu H}$ inductor. The frequency of electromagnetic radiation emitted by antenna coupled to the $LC$ circuit is $\_\_\_\_\_\_\_\_$

Which of the following can be a wave function?

The phase relationship between current and voltage in a pure resistive circuit is best represented by