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Applied Electricity

Applied Electricity · Quick practice · answer shown after each question

A.C. theory

Question 1 of 10

Question 1 of 10

The r.m.s. value of an a.c. with peak 100 V is about

Question 2 of 10

Question 2 of 10

Power factor is the ratio of

Question 3 of 10

Question 3 of 10

Inductive reactance increases when frequency

Question 4 of 10

Question 4 of 10

Capacitive reactance decreases when the

Question 5 of 10

Question 5 of 10

In a purely inductive circuit, current

Question 6 of 10

Question 6 of 10

Power factor in an a.c. circuit is

Question 7 of 10

Question 7 of 10

In a purely resistive AC circuit, the current and voltage are

Question 8 of 10

Question 8 of 10

Capacitive reactance of a 100 μF capacitor at 50 Hz is about

Question 9 of 10

Question 9 of 10

The frequency of the mains supply in Ghana is

Question 10 of 10

Question 10 of 10

Impedance is measured in

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.