Question 1

What ratio specifies the capacitive reactance in ohms?

Accepted Answer

A)   vc/ic
B)   ic/vc
C)   dv/dt
D)   XC/icE) All of the above
F) A) and D)

Question 2

In the capacitive reactance formula, the constant factor 2? is always 2 times 3.14, which equals 6.28.

Accepted Answer

A) True 
 B)False

Question 3

In a capacitive circuit, if the applied voltage is an rms value

Accepted Answer

A)   all calculated currents and voltage drops are also rms values
B)   all calculated currents and voltage drops must be peak values
C)   all calculated currents and voltage drops are average values
D)   all calculated currents and voltage drops are peak-to-peak valuesE) A) and D)
F) A) and C)

Question 4

For parallel reactances, the combined reactance is calculated by the ______________ formula.

Accepted Answer

The answer of For parallel reactances, the combined reactance is...

Question 5

Capacitive reactance is a measure of a capacitor's ______________ to the flow of alternating current.

Accepted Answer

The answer of Capacitive reactance is a measure of a...

Question 6

The symbol for capacitive reactance is

Accepted Answer

A)   ZC
B)   CX
C)   XC
D)   RX E) C) and D)
F) None of the above

Question 7

The rate of voltage change, dv/dt, for a sine wave, is determined by its

Accepted Answer

A)   amplitude only
B)   frequency only
C)   current
D)   amplitude and frequencyE) B) and D)
F) C) and D)

Question 8

In the formula for capacitive reactance, the constant factor 2π is always ______________.

Accepted Answer

The answer of In the formula for capacitive reactance, the...

Question 9

Capacitive reactance is a measure of a capacitor's opposition to the flow of direct current.

Accepted Answer

A) True 
 B)False

Question 10

Capacitive reactance is inversely proportional to the capacitance.

Accepted Answer

A) True 
 B)False

Question 11

When a capacitor charges and discharges with a varying voltage applied, ______________ current can flow.

Accepted Answer

The answer of When a capacitor charges and discharges with...

Question 12

A very common application for a capacitor is to block ______________.

Accepted Answer

The answer of A very common application for a capacitor...

Question 13

There is no capacitive charge or discharge current when an applied ac source is not changing.

Accepted Answer

A) True 
 B)False

Question 14

The base unit for capacitive reactance is the ______________.

Accepted Answer

The answer of The base unit for capacitive reactance is...

Question 15

The general use of capacitive reactance is to block direct current but provide low reactance for alternating current.

Accepted Answer

A) True 
 B)False

Question 16

Capacitive reactance is ______________ proportional to frequency.

Accepted Answer

The answer of Capacitive reactance is ______________ proportional to frequency....

Question 17

The rate of voltage change, dv/dt, for a sine wave, is determined by both its amplitude and its frequency.

Accepted Answer

A) True 
 B)False

Exam 18: Capacitive Reactance

In the formula for capacitive reactance, the constant factor 2π is always ______________.

Correct Answer
verified

There is no capacitive charge or discharge current when an applied ac source is not changing.

Correct Answer
verified

Capacitive reactance is a measure of a capacitor's opposition to the flow of direct current.

Correct Answer
verified

Capacitive reactance is inversely proportional to the capacitance.

Correct Answer
verified

A very common application for a capacitor is to block ______________.

Correct Answer
verified

The general use of capacitive reactance is to block direct current but provide low reactance for alternating current.

Correct Answer
verified

The symbol for capacitive reactance is

Correct Answer
verified

The base unit for capacitive reactance is the ______________.

Correct Answer
verified

The rate of voltage change, d_v/d_t, for a sine wave, is determined by its

Correct Answer
verified

When a capacitor charges and discharges with a varying voltage applied, ______________ current can flow.

Correct Answer
verified

What ratio specifies the capacitive reactance in ohms?

Correct Answer
verified

Capacitive reactance is a measure of a capacitor's ______________ to the flow of alternating current.

Correct Answer
verified

In the capacitive reactance formula, the constant factor 2? is always 2 times 3.14, which equals 6.28.

Correct Answer
verified

Capacitive reactance is ______________ proportional to frequency.

Correct Answer
verified

For parallel reactances, the combined reactance is calculated by the ______________ formula.

Correct Answer
verified

The rate of voltage change, d_v/d_t, for a sine wave, is determined by both its amplitude and its frequency.

Correct Answer
verified

In a capacitive circuit, if the applied voltage is an rms value

Correct Answer
verified

Exam 18: Capacitive Reactance

In the formula for capacitive reactance, the constant factor 2π is always ______________.

Correct AnswerverifiedShow Answer

There is no capacitive charge or discharge current when an applied ac source is not changing.

Correct AnswerverifiedShow Answer

Capacitive reactance is a measure of a capacitor's opposition to the flow of direct current.

Correct AnswerverifiedShow Answer

Capacitive reactance is inversely proportional to the capacitance.

Correct AnswerverifiedShow Answer

A very common application for a capacitor is to block ______________.

Correct AnswerverifiedShow Answer

The general use of capacitive reactance is to block direct current but provide low reactance for alternating current.

Correct AnswerverifiedShow Answer

The symbol for capacitive reactance is

Correct AnswerverifiedShow Answer

The base unit for capacitive reactance is the ______________.

Correct AnswerverifiedShow Answer

The rate of voltage change, dv/dt, for a sine wave, is determined by its

Correct AnswerverifiedShow Answer

When a capacitor charges and discharges with a varying voltage applied, ______________ current can flow.

Correct AnswerverifiedShow Answer

What ratio specifies the capacitive reactance in ohms?

Correct AnswerverifiedShow Answer

Capacitive reactance is a measure of a capacitor's ______________ to the flow of alternating current.

Correct AnswerverifiedShow Answer

In the capacitive reactance formula, the constant factor 2? is always 2 times 3.14, which equals 6.28.

Correct AnswerverifiedShow Answer

Capacitive reactance is ______________ proportional to frequency.

Correct AnswerverifiedShow Answer

For parallel reactances, the combined reactance is calculated by the ______________ formula.

Correct AnswerverifiedShow Answer

The rate of voltage change, dv/dt, for a sine wave, is determined by both its amplitude and its frequency.

Correct AnswerverifiedShow Answer

In a capacitive circuit, if the applied voltage is an rms value

Correct AnswerverifiedShow Answer

Correct Answer
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The rate of voltage change, d_v/d_t, for a sine wave, is determined by its

Correct Answer
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The rate of voltage change, d_v/d_t, for a sine wave, is determined by both its amplitude and its frequency.

Correct Answer
verified

Correct Answer
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