Question

Question 1 (1 point) Saved Inductors, resistors and capacitors all add an effective resistance called impedance Inductors store energy whilst capacitors build up: charge Inductors are insensitive to changes in: voltage Capacitors are insensitive to changes in: current Previous Page Next Page

Answer 1

(a)

This happens when power supply is alternating in nature. It arise with combined effect of Ohmic resistance and reactance

(b)

During charging process, charge build up, each successive element of charge requires more work to force it onto the positive plate.

(c)

Voltage across the inductor depends on rate of change of current. i.e V = L*$\dpi{80} \frac{\mathrm{d} I}{\mathrm{d} t}$

Thus, inductors are sensitive to rate of change of current.

(d)

Voltage across capacitor, V = Q / C, With change in voltage charge across the capacitor changes but change in current doen't have effect on unless the voltage changes.