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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?
10 omega.gif
100 omega.gif
1 k omega.gif
1 M omega.gif
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.

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

0.066 mu.gifF
0.9 mu.gifF
65.97 pF
900 pF
Answer: Option
Explanation:
No answer description is available. Let's 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?
bandpass
low-pass
high-pass
band-stop
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
What is the total opposition to current in a series RC circuit called?
impedance
inductance
reactance
resistance
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Which of the following statements is true?
The voltage to which a capacitor is charged can change instantaneously.
The current in a capacitive circuit takes time to change.
A fully charged capacitor appears as a short to dc current.
An uncharged capacitor appears as a short to an instantaneous change in current.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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