What will be the impedance of the adjoining circuit, Fig. (i) current source,(1)D.C (ii) an a.c. source of frequency `25//pi` kilohertz ?

What will be the impedance of the circuit when resistance (R) and capacitor having capacitance C are connected with AC source of frequency f in series combination :-

In the adjoining circuit, the current I drawn from the 5 volt source will be

What is the impedance of a capacitor of capacitance C in an ac circuit using source of frequency in Hz?

What are the SI units of reactance and impedance in a.c. 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.