Capacitors - General Questions (9)

Directions to Solve

Capacitors - General Questions

65.

You could increase the time constant of an RC circuit by

A.	adding a resistor in parallel with the circuit resistance
B.	adding a capacitor in parallel with the circuit capacitance
C.	increasing the amplitude of the input voltage
D.	exchanging the position of the resistor and capacitor in the circuit

Answer: Option B

Explanation:

No answer description available for this question

66.

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

A.	first
B.	third
C.	fifth
D.	seventh

Answer: Option C

Explanation:

No answer description available for this question.

67.

What is this circuit?

mcq7_1040_1

A.	bandpass filter
B.	high-pass filter
C.	low-pass filter
D.	differentiator

Answer: Option B

Explanation:

No answer description available for this question

68.

What is the total capacitance?

mcq7_1008_1

A.	1 F
B.	12 F
C.	0.615 F
D.	8 F

Answer: Option B

Explanation:

No answer description available for this question.

69.

When a 4.7 F capacitor is connected to a 1 kHz source, what is its capacitive reactance?

A.	4.7 ohms
B.	29.5 ohms
C.	34 ohms
D.	213 ohms

Answer: Option C

Explanation:

No answer description available for this question.

70.

What is the angle theta value for a 5.6 F capacitor and a 50-ohm resistor in series with a 1.1 kHz, 5 V_ac source?

A.	27.3 degrees
B.	62.7 degrees
C.	â€“27.3 degrees
D.	â€“62.7 degrees

Answer: Option C

Explanation:

No answer description available for this question

71.

mcq9_1009_1

What is the reactive power in the given circuit?

A.	0 VAR
B.	691 VAR
C.	44.23 mVAR
D.	1.45 kVAR

Answer: Option C

Explanation:

No answer description available for this question

72.

When is a capacitor fully charged?

A.	when the voltage across its plates is of the voltage from ground to one of its plates
B.	when the current through the capacitor is the same as when the capacitor is discharged
C.	when the voltage across the plates is 0.707 of the input voltage
D.	when the current through the capacitor is directly proportional to the area of the plates

Answer: Option B

Explanation:

No answer description available for this question

Capacitors - General Questions (9)

Capacitors - General Questions

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