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WorksheetsAC with resistor and AC with inductor
Total questions: 10
Worksheet time: 10mins
The peak value of ac voltage on a 220 V mains is
2002
2202
2220
220
The phase relationship between current and voltage in a pure resistive circuit is best represented by
Which of the following graphs represents the correct variation of inductive reactance XL with frequency u?
A resistor is connected to an AC power supply. On this circuit, the current
leads the voltage by 90°.
lags the voltage by 90°.
is in phase with the voltage.
none of the given answers
A pure inductor is connected to an AC power supply. In this circuit, the current
leads the voltage by 90°.
lags the voltage by 90°.
is in phase with the voltage.
none of the given answers.
If the frequency of the AC voltage across an inductor is doubled, the inductive reactance of that inductor
increases to 4 times its original value.
increases to twice its original value.
decreases to one-half its original value.
decreases to one-fourth its original value.
The formula for inductive reactance is
ωL1
ωC
ωC1
ωL
The formula for inductive reactance is _____.
XL = 1 ÷ 2πfL
XL = 2 ÷ πfL
XL = 2π ÷ fL
XL = 2πfL
What is the Peak voltage of the signal shown on the multimeter?
1000 V
1414 V
1500 V
707 V
A sine wave has a peak value of 354 V, What is the RMS value?
250 V
500 V
354 V
200V
