B M Sharma Solutions for Chapter: Alternating Current, Exercise 1: DPP

The r.m.s. voltage of the waveform shown is:

The output current versus time curve of a rectifier is shown in the figure. The average value of output current in this case is, 

The current $i$ in an inductance coil varies with time $t$ according to following graph,

Which one of the following plots shows the variations of voltage in the coil?

Two sinusoidal voltages of the same frequency are shown in the diagram. What is the frequency and the phase relationship between the voltages?

The voltage across a pure inductor is represented by the following diagram.

Which one of the following diagrams will represent the current?

In pure inductive circuit, the curves between frequency $f$ and reciprocal of inductive reactance $\frac{1}{X_{\mathrm{L}}}$ is

The graphs given below depict the dependence of two reactive impedances $X_1$ and $X_2$ on the frequency of the alternating emf applied individually to them. We can then say that

Which of the following curves correctly represents the variation of capacitive reactance $X_{\mathrm{C}}$ with frequency $f$?