WorksheetsCalculations in C-R & L-R Circuits Quiz
Total questions: 10
Worksheet time: 11mins
Name
Class
Date
1.
What is the time constant formula for a CR circuit?
a)
τ = RC
b)
τ = L/R
c)
τ = R/L
d)
τ = 1/(RC)
2.
What does a capacitor store energy as?
a)
Magnetic field
b)
Electrostatic field
c)
Gravitational field
d)
Kinetic energy
3.
In an LR circuit, what does the inductor resist?
a)
Voltage change
b)
Current change
c)
Temperature change
d)
Power change
4.
What is the final steady state value of the current in an LR circuit with a 18V supply, 6Ω resistance and 50mH inductance?
a)
1A
b)
0.5A
c)
3A
d)
5A
5.
What is the time constant of an LR circuit with an inductance of 100mH and a resistance of 5Ω?
a)
0.06s
b)
0.2s
c)
0.02s
d)
5s
6.
What is the unit of capacitance?
a)
Ohm
b)
Farad
c)
Henry
d)
Volt
7.
What is the unit of inductance?
a)
Ohm
b)
Farad
c)
Henry
d)
Volt
8.
What is the product of resistance and capacitance in a CR circuit called?
a)
Time constant
b)
Power factor
c)
Impedance
d)
Reactance
9.
What does an inductor in an LR circuit create to oppose current flow?
a)
Electric field
b)
Magnetic field
c)
Heat
d)
Light
10.
What is the voltage across a capacitor 6 seconds after being charged with a 12V supply and a time constant of 15s?
a)
0V
b)
2.97V
c)
3.95V
d)
9V
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