Pure Resistance, Inductance and Capacitance In AC Circuit

What is pure resistance in AC circuit?

For a pure resistance,if the voltage supplied through a sinusoidal source, the phase difference between the voltage and the current phasor is _____.

Select the correct phasor diagram of the circuit having only resistance.

Discuss the phasor diagram of an a.c circuit with a pure resistance only.

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.

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

What is phasor diagram draw phasor diagram for purely inductive circuit?

The correct variation of resistance $R$ with frequency $f$ is given by

The alternating current _____ the e.m.f. by a phase angle of $\frac{\pi }{2}$, when AC flows through an inductor.

The given graphs $\left(a\right)$and $\left(b\right)$ represent the variation of the opposition offered by the circuit element to the flow of alternating current, with frequency of the applied emf. Identify the circuit element corresponding to each graph.

The circuit containing only capacitance is called

A voltage ${\mathrm{V}}_{\mathrm{PQ}}={\mathrm{V}}_0\cos \left(\mathrm{\omega t}\right)$ (where, ${\mathrm{V}}_0$ is a real amplitude) is applied between the points $\mathrm{P}$ and $\mathrm{Q}$ in the network shown in the figure. The values of capacitance and inductance are $\mathrm{C}=\frac{1}{\text{ω}\mathrm{R}\sqrt{3}}$ and $\mathrm{L}=\frac{\mathrm{R}\sqrt{3}}{\mathrm{\omega }}$. Then, the total impedance between $\mathrm{P}$ and $\mathrm{Q}$ is

A capacitor has capacitance $C$ and reactance $X$. If capacitance and frequency becomes doubled, then reactance will be

A coil has inductance of $0.1 \mathrm{H}$. Find its reactance at $50 \mathrm{Hz}$.

How the inductive and capacitive reactances are affected by increasing AC frequency?

The current in an inductive circuit is given by $I=I_m\sin \left(\omega t\right)$. Give the equation for voltage.

Explain the term: Capacitive reactance.

Explain the theory of AC circuit with inductor. Draw phasor diagram of voltage and current in each case.

Explain the term: Inductive reactance.

Explain the theory of AC circuit with resistor. Draw phasor diagram of voltage and current.