Question:
A transformer works on
DC only.
AC only.
Both AC and DC.
High voltage only.
Question:
Alternating voltage
Is independent of time.
Varies directly with time.
Varies inversely with time.
Varies sinusoidally with time.
Question:
The law of electromagnetic induction have been used in the construction of
Electric operator.
Electric motor.
Galvanometer.
None of the above.
Question:
Power consumed in an AC circuit become zero if
Inductance and resistance are both high.
Inductance and resistance are both low.
Inductance very high and resistance negligible.
Inductance low and resistance high.
Question:
The rms value of currentis