Applied Electricity quick practice

Question 1 of 10

Reactive power is measured in

Question 2 of 10

In a purely inductive a.c. circuit, the current

Question 3 of 10

A 100 W bulb is used for 10 hours. How much energy does it use?

Question 4 of 10

The direction of force on a current-carrying conductor in a magnetic field is given by

Question 5 of 10

The voltage gain of an amplifier with output 2 V for input 20 mV is

Question 6 of 10

A 6 Ω resistor is in series with a parallel pair of 4 Ω and 12 Ω across 18 V. The total current is

Question 7 of 10

The process of adding impurities to pure silicon is

Question 8 of 10

A switch should always be connected in the

Question 9 of 10

Laminating the core of a transformer reduces

Question 10 of 10

The first action when someone receives an electric shock is to