# Electronics - Capacitors

### Exercise :: Capacitors - General Questions

21.

If a current of 40 mA flows through a series circuit consisting of a 0.4 F capacitor and a resistor in series with a 4 kHz, 40 Vac source, what is the total circuit impedance?

 A. 10 B. 100 C. 1 k D. 1 M Explanation:

No answer description available for this question. Let us discuss.

22. What is the capacitance of the circuit shown in the given circuit?

 A. 0.066 F B. 0.9 F C. 65.97 pF D. 900 pF

Explanation:

No answer description available for this question. Let us discuss.

23.

In an ac circuit, an output capacitor and a resistor are connected in series with an ac signal. What filter action will be the result?

 A. bandpass B. low-pass C. high-pass D. band-stop

Explanation:

No answer description available for this question. Let us discuss.

24.

What is the total opposition to current in a series RC circuit called?

 A. impedance B. inductance C. reactance D. resistance

Explanation:

No answer description available for this question. Let us discuss.

25.

Which of the following statements is true?

 A. The voltage to which a capacitor is charged can change instantaneously. B. The current in a capacitive circuit takes time to change. C. A fully charged capacitor appears as a short to dc current. D. An uncharged capacitor appears as a short to an instantaneous change in current.