Question

A device X is connected across an ac source of voltage V = V0 sin ωt. The current through X is given as
(a) Identify the device X and write the expression for its reactance.
(b) Draw graphs showing variation of voltage and current with time over one cycle of ac, for X.
(c) How does the reactance of the device X vary with frequency of the ac ? Show this variation graphically.
(d) Draw the phasor diagram for the device X.

Answer 1

Answer:

Srry NO GRAPH IS GIVEN??????

Answer 2

Capacitor

Explanation:

(a) The device is a capacitor. The reactance of the given capacitor = Xc = 1/ωC = 1/2πfC

(b) Please find attached picture for the graph showing variation of voltage and current with time over one cycle of ac, for X.  

(c) Please find attached picture for the graph showing variation of the reactance (Xc) of the device X with frequency f.

(d) Please find attached picture for the phasor diagram of the given capacitor.