Power in AC Circuit and Wattless Current

A series LCR circuit is made by taking $R=100\mathrm{\Omega },L=\frac{2}{\pi }\mathrm{H},C=\frac{100}{\pi }\mathrm{\mu F}$ . This series combination is connected across an a.c. source of $220 \mathrm{V}, 50 \mathrm{Hz}$. Calculate (i) the impedance of the circuit and
(ii) the peak value of the current flowing in the circuit.
(iii) Calculate the power factor of this circuit.

In a series $\mathrm{LCR}$ circuit, the inductive reactance $X_L=4\mathrm{\Omega }$, the capacitive reactance $X_C=10\mathrm{\Omega }$ and the resistance $R=6\mathrm{\Omega }$. The power factor of the circuit is

The power factor of LCR circuit which is in a state of resonance is

A circuit consists of a resistance of $6\Omega ,$ a capacitance of $2\mu \mathrm{F}$ and an inductance of $0.01\mathrm{H},$ in series with a power supply of $12\sin \left(\omega t\right)$ (Volts). Internal resistance of rest of the circuit is negligible. If the frequency of the power supply is such that the circuit is in resonance, average power generated by the power supply is

In an $AC$ circuit, which has unknown electrical devices connected in series having resistance $3 \Omega$, the power factor is $\frac{3}{5}$. The resistance of circuit is

The true power in an AC circuit should be measured in __________________?

The three types of power in AC circuits are _______________, ______________, and ________________ power

Real or true power do the actual work in the _____?

The true power is measured in watts and signifies the power drawn by the circuits resistance to do useful works.

How do you find the true power in an AC circuit?

The form factor is the ratio of 

Find the form factor of the wave form given in figure-

Form factor of a sawtooth waveform with a period of $3 \sec$ and a peak voltage of $150 \mathrm{V}$ is-

The $\mathrm{rms}$ value of sinusoidally varying current is_____. That of its average value.

The form factor of the sinusoidal waveform is ?

The potential difference $V$and the current $I$ flowing through an A.C circuit is given by $V=5 \cos (\omega t-\frac{\mathrm{\pi }}{6})$ in volt  and $I=10 \sin \left(\omega t\right)$ in ampere. The average power dissipated in the circuit is:

Effective voltage $V_{\mathrm{rms}}$ is related to peak voltage $V_0$ by

The emf of an AC circuit is given by$e=60 \sin (53.141t)$ and the current by $i=\frac{\left(60\right)}{10.628} \sin (53.141t-\frac{\mathrm{\pi }}{2}).$ Then the power consumed by the circuit is _____.

An electric bulb marked as $50\mathrm{W}-200\mathrm{V}$ is connected across a $100V$ supply. The present power of the bulb is