# Electronics - Capacitors

Exercise : Capacitors - General Questions
1.
In a 20 Vac series RC circuit, if 20 V is measured across the resistor and 40 V is measured across the capacitor, the applied voltage is:
45 V
50 V
55 V
60 V
Explanation:
No answer description is available. Let's discuss.

2.
Select the equation below that represents the relationship between charge, capacitance, and voltage for a capacitor.
Q = CV
C = QV
V = IR
Explanation:
No answer description is available. Let's discuss.

3.
When is a capacitor fully charged?
when the voltage across its plates is of the voltage from ground to one of its plates
when the current through the capacitor is the same as when the capacitor is discharged
when the voltage across the plates is 0.707 of the input voltage
when the current through the capacitor is directly proportional to the area of the plates
Explanation:
No answer description is available. Let's discuss.

4.

What is the reactive power in the given circuit?

0 VAR
691 VAR
44.23 mVAR
1.45 kVAR