Exam 9: Capacitors

If a 0.1 $\mu \mathrm { F }$ capacitor and a 2.2 $k \Omega$ resistor are connected in series across 30 $\mathrm { VDC }$ , how much voltage will the capacitor drop after charging for just one time constant?

If a 22 $\mu F$ capacitor is connected to a 15 V 400 Hz source, its current equals______

How long will it take a 1 $\mu \mathrm { F }$ capacitor to completely discharge through a 47 $\mathrm { k } \Omega$ resistor?

If a 0.047 $\mu F$ , 0.047 $\mu \mathrm { F }$ and 0.47 $\mu \mathrm { F }$ capacitor are connected in series across a 25 V source, the total capacitance equals ____________and each 0.047 $\mu F$ capacitor drops___

How much voltage is dropped across a 150 $\mu \mathrm { F }$ capacitor after 3.33 seconds if it is charged by a 50 V source through a 22 $\mathrm { K } \Omega$ resistor?

If an uncharged capacitor, a resistor, a switch and a 12 V battery are connected in series,What is the voltage across the capacitor at the instant the switch is closed?

The time constant for a capacitor for each time period is:

In a capacitive AC circuit, the phase relationship between the voltage and the current is such that the:

How much charge is stored in a 0.47 $\mu \mathrm { F }$ capacitor that drops 18 V?

Electrolytic capacitors are ideal for alternating current applications.

What is the capacitance of a capacitor that drops 50V and stores 0.500 $\mu \mathrm { C }$ of charge?

A capacitorW ill fully charge in about five time constants.

Electrolytic capacitors differ from many other capacitors in construction in that they are:

If four 0.022 $\mu \mathrm { F }$ capacitors are connected in parallel, $\mathrm { C_T }$ equals_______

A commonplace use for capacitors in electronics is to:

If an uncharged capacitor, a resistor, a switch and a 12 V battery are connected in series, at approximatelyW hat timeW ill the capacitor reach full charge?

A capacitor can fully charge in one time constant.

If a 22 $\mu \mathrm { F }$ and $\mu F$ capacitor are connected in parallel across a 15 V source, the total capacitance equals _________and the 22 $\mu \mathrm { F }$ capacitor drops______

If an uncharged capacitor, a resistor, a switch and a 12 V battery are connected in series,W hat is the voltage across the capacitor after it is fully charged?

When two capacitors are connected in series across a dc source, the smallest capacitor drops the largest Voltage.