Capacitors MCQs

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

A 12 kHz voltage is applied to a 0.33 μF capacitor, and 200 mA of rms current is measured. What is the value of the voltage?

When the plate area of a capacitor increases,

A 2 μF, a 4 μF, and a 10 μF capacitor are connected in series. The total capacitance is less than

Which of the following capacitors is polarized?

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

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

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

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