Canadian Advanced pool, section 1-01

Advanced

This is an old (expired) question pool. Click here to go to the current version

Subelement 1

Advanced Theory

Section 1-01

time constant - capacitive and inductive

1-01-01

What is the meaning of the term "time constant" in an RL circuit?

A.
The time required for the current in the circuit to build up to 36.8% of the maximum value
B.
The time required for the voltage in the circuit to build up to 63.2% of the maximum value
C.
The time required for the voltage in the circuit to build up to 36.8% of the maximum value
Correct Answer
D.
The time required for the current in the circuit to build up to 63.2% of the maximum value

1-01-01

This question does not yet have an explanation! Register to add one

Tags: none

1-01-02

What is the term for the time required for the capacitor in an RC circuit to be charged to 63.2% of the supply voltage?

A.
An exponential rate of one
Correct Answer
B.
One time constant
C.
A time factor of one
D.
One exponential period

1-01-02

This question does not yet have an explanation! Register to add one

Tags: none

1-01-03

What is the term for the time required for the current in an RL circuit to build up to 63.2% of the maximum value?

Correct Answer
A.
One time constant
B.
An exponential period of one
C.
A time factor of one
D.
One exponential rate

1-01-03

This question does not yet have an explanation! Register to add one

Tags: none

1-01-04

What is the term for the time it takes for a charged capacitor in an RC circuit to discharge to 36.8% of its initial value of stored charge?

A.
A discharge factor of one
B.
An exponential discharge of one
Correct Answer
C.
One time constant
D.
One discharge period

1-01-04

This question does not yet have an explanation! Register to add one

Tags: none

1-01-05

What is meant by "back EMF"?

A.
A current that opposes the applied EMF
Correct Answer
B.
A voltage that opposes the applied EMF
C.
An opposing EMF equal to R times C percent of the applied EMF
D.
A current equal to the applied EMF

1-01-05

This question does not yet have an explanation! Register to add one

Tags: none

1-01-06

After two time constants, the capacitor in an RC circuit is charged to what percentage of the supply voltage?

A.
63.2%
Correct Answer
B.
86.5%
C.
95%
D.
36.8%

1-01-06

This question does not yet have an explanation! Register to add one

Tags: none

1-01-07

After two time constants, the capacitor in an RC circuit is discharged to what percentage of the starting voltage?

Correct Answer
A.
13.5%
B.
36.8%
C.
86.5%
D.
63.2%

1-01-07

This question does not yet have an explanation! Register to add one

Tags: none

1-01-08

What is the time constant of a circuit having a 100 microfarad capacitor in series with a 470 kilohm resistor?

A.
4700 seconds
B.
470 seconds
C.
0.47 seconds
Correct Answer
D.
47 seconds

1-01-08

This question does not yet have an explanation! Register to add one

Tags: none

1-01-09

What is the time constant of a circuit having a 470 microfarad capacitor in series with a 470 kilohm resistor?

A.
221 000 seconds
B.
47 000 seconds
Correct Answer
C.
221 seconds
D.
470 seconds

1-01-09

This question does not yet have an explanation! Register to add one

Tags: none

1-01-10

What is the time constant of a circuit having a 220 microfarad capacitor in series with a 470 kilohm resistor?

A.
470 000 seconds
B.
470 seconds
Correct Answer
C.
103 seconds
D.
220 seconds

1-01-10

This question does not yet have an explanation! Register to add one

Tags: none

Log in

- or -

- or -