#### The Following Section consists of Multiple Choice Questions on Capacitors.

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Capacitors MCQ

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##### 1. Question

1 points#### 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

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##### 2. Question

1 points#### Which of the following capacitors is polarized?

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##### 3. Question

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

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##### 4. Question

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

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##### 5. Question

1 points#### A 330 pF capacitor and a 220 pF capacitor are each connected across a 6 V dc source. The voltage across the 330 pF capacitor is

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##### 6. Question

1 points#### When the plate area of a capacitor increases,

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##### 7. Question

1 points#### When the voltage across a capacitor is tripled, the stored charge

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Capacitors MCQ 2

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##### 1. Question

1 points#### In a 20 V

_{ac}series RC circuit, if 20 V is measured across the resistor and 40 V is measured across the capacitor, the applied voltage is:CorrectIncorrect - Question 2 of 20
##### 2. Question

1 points#### When is a capacitor fully charged?

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##### 3. Question

1 points#### After which time constant can a capacitor be considered to be fully charged?

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##### 4. Question

1 points#### You could increase the time constant of an RC circuit by

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##### 5. Question

1 points#### A capacitor’s rate of charge is considered:

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##### 6. Question

1 points#### A resistor and an output capacitor form a series circuit with a square wave applied. The circuit is:

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##### 7. Question

1 points#### If an open capacitor is checked with an ohmmeter, the needle will:

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##### 8. Question

1 points#### As a capacitor is being charged, current flowing into the capacitor will:

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##### 9. Question

1 points#### A capacitor stores energy within a dielectric between the conducting plates in the form of:

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##### 10. Question

1 points#### As a capacitor is being charged, the voltage across its terminals will:

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##### 11. Question

1 points#### After a capacitor has charged for 1 tc, what percentage of current remains in the resistor?

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##### 12. Question

1 points#### 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?

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##### 13. Question

1 points#### What is the total opposition to current in a series RC circuit called?

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##### 14. Question

1 points#### Which of the following statements is true?

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##### 15. Question

1 points#### In a capacitive circuit, current flow is limited to

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##### 16. Question

1 points#### A capacitor is constructed of two parallel:

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##### 17. Question

1 points#### Which of the following determines the capacitance of a capacitor?

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##### 18. Question

1 points#### Most older types of paper capacitors have been replaced by which type of construction?

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##### 19. Question

1 points#### What is the reactance value for a capacitor installed in a dc circuit?

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##### 20. Question

1 points#### In a purely capacitive circuit,

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Capacitors MCQ 3

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- Question 1 of 20
##### 1. Question

1 points#### What is wrong with a leaky capacitor?

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##### 2. Question

1 points#### What is the value of a capacitor labeled 102?

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##### 3. Question

1 points#### If the dielectric constant of a capacitor is decreased, then its capacitance will:

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##### 4. Question

1 points#### What is the dielectric constant for ceramic?

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##### 5. Question

1 points#### What is the voltage across a capacitor after being charged from a 100 V source for a period of one time constant?

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##### 6. Question

1 points#### Power stored from the source and then returned to the source is called:

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##### 7. Question

1 points#### Capacitor value markings are usually:

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##### 8. Question

1 points#### A source voltage across a capacitor will:

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##### 9. Question

1 points#### An 8 V power source is charging a capacitor. How many volts will be across the capacitor at the second time constant?

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##### 10. Question

1 points#### The material used between the plates of a capacitor is called its:

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##### 11. Question

1 points#### When a circuit consists of a capacitor and a resistor in series with a voltage source, and the voltage across the resistor is zero, then the capacitor is:

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##### 12. Question

1 points#### Which material has the highest dielectric strength?

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##### 13. Question

1 points#### In an ac circuit, a capacitor and an output resistor are connected in series with an ac signal. What filter action will be the result?

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##### 14. Question

1 points#### A practical capacitor

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##### 15. Question

1 points#### Which of the following is the reference vector for parallel RC circuits?

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##### 16. Question

1 points#### What do variable capacitors use for dielectric?

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##### 17. Question

1 points#### If a charged capacitor is disconnected from a circuit, it will:

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##### 18. Question

1 points#### The strength of an electric field at a given point is proportional to the potential difference on the plates and inversely proportional to the:

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##### 19. Question

1 points#### How is ac current related to ac voltage in a purely capacitive circuit?

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##### 20. Question

1 points#### For a given charge difference, electrostatic field strength varies according to:

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Capacitors MCQ 4

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- Question 1 of 7
##### 1. Question

1 points#### A capacitor and an output resistor form a series circuit with a square wave applied. The circuit is:

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##### 2. Question

1 points#### Capacitive reactance values connected in series offer

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##### 3. Question

1 points#### The quantity that represents an ideal capacitor dissipating 0 W of power is

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##### 4. Question

1 points#### If a capacitor is placed across a 20 V source, what will be the amount of charge after 5 tc?

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##### 5. Question

1 points#### What is the impedance of an ac RC parallel circuit if the resistance is 12 ohms and the capacitive reactance equals 5 ohms?

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##### 6. Question

1 points#### What is the power factor if the apparent power of a circuit is 5 W, while the true power is 4 W?

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##### 7. Question

1 points#### If the reactive power of a circuit is 50 mW while the apparent power is 64 mW, then what is the true power of the circuit?

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