An a.c. circuit consists of a series combination of circuit elements X and Y. The current is ahead of voltage in phase by `pi//4`. If element X is a pure resistor of 100 ohm, name the circuit element Y, and calculate the rms value of current if rms voltage is 141 V.

A series combination of circuit elements X and Y is connected across AC mains. The current is ahead of voltage by a phase difference of pi /3 radians . The element Y is a resistor of 150 Omega . Name the circuit element X. Calculate the rms value of current if rms value of voltage is 150 V.

A 100 Omega resistor is connected to a 220 V, 50 Hz ac supply. What is the rms value of current in the circuit?

A 100 Omega resistor is connected to a 220 V. 50 Hz ac supply. What is the rms value of current in the circuit ?

You are given three circuits X, Y and Z when the element X is connected across an a.c. source of a given voltage, the current and voltage are in same phase. When element Y is connected in series with X across the source, voltage is ahead of voltage by pi//4 . But the current is ahead of voltage by pi//4 , when Z is connected series with X, across the source. Identify the circuit elements X, Y and Z. When all the three elements are connected in series across the same source, determine the impedance of the circuit . Draw a plot of current versus the frequency of applied source and mention the significance of this plot.

In an a.c circuit with phase voltage V and current I, the power dissipated is

A 100Omega resistor is connected to a 220 V, 50 Hz ac supply What is the rms value of the current in the circuit?

A reactive element, in an a.c. circuit, causes the current flowing to lag in phase by pi/2 w.r.t applied voltage. Identify the element in this case.

In an a.c. circuit, with phase voltage V and current I, the power dissipated is

If in an A.C. circuit voltage V and current is then the power dissipated in the circuit is …….