Q.1.
The true power in a capacitor is zero.
Q.2.
A capacitor blocks A.C. but passes D.C.
Q.3.
Total parallel capacitance is less than that of the smallest capacitor in parallel.
Q.4.
A 0.01 µF capacitor equals how many picofarads?
Q.5.
A sine wave voltage is applied across a capacitor. When the frequency of the voltage is decreased, the current
Q.6.
Two 0.68 µF capacitors are connected in series across a 10 kHz sine wave signal source. The total capacitive reactance is

Explanation

Q.7.
A 0.47 µF capacitor is across a 2 kHz sine wave signal source. The capacitive reactance is
Q.8.

A sine wave voltage is applied across a capacitor. When the frequency of the voltage is decreased, the current

Q.9.

A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased

Q.10.

A sine wave voltage is applied across a capacitor. When the frequency of the voltage is decreased, the current

Q.11.

Two series capacitors (one 2 F, the other of unknown value) are charged from aV source. The 2 F capacitor is charged toV and the other to 8 V. The value of the unknown capacitor is

Q.12.

A capacitor and a resistor are connected in series to a sine wave generator. The frequency is set so that the capacitive reactance is equal to the resistance and, thus, an equal amount of voltage appears across each component. If the frequency is increased

Q.13.

Which of the following capacitors is polarized?

Q.14.

When the voltage across a capacitor is tripled, the stored charge

Q.15.

Which of the following capacitors is polarized?

Q.16.

When the voltage across a capacitor is tripled, the stored charge

Q.17.

Of the following capacitors, which one has the highest dielectric constant?

Q.18.

ApF capacitor and apF capacitor are each connected across a 6 V dc source. The voltage across thepF capacitor is

Q.19.

In Questionthe capacitor will reach full charge in a time equal to approximately

Q.20.

A 2 F, a 4 F, and aF capacitor are connected in series. The total capacitance is less than