Concepts of electricity

Question 1 of 10

A kilowatt-hour is a unit of

Question 2 of 10

Electric current is measured with

Question 3 of 10

A current of 2 A flows through a 6 Ω resistor. What is the voltage across it?

Question 4 of 10

A 100 W bulb is used for 5 hours. How much energy does it use?

Question 5 of 10

A household uses a 2 kW heater for 3 h and five 100 W bulbs for 4 h daily. Daily energy is

Question 6 of 10

Two 4 Ω resistors are connected in series. What is their total resistance?

Question 7 of 10

The current through a 6 Ω resistor connected to a 12 V supply is

Question 8 of 10

Three 12 Ω bulbs are connected in parallel to a 6 V supply. The total current is

Question 9 of 10

Voltage is measured with a voltmeter connected

Question 10 of 10

Three resistors of 2 Ω, 3 Ω and 6 Ω are connected in parallel across 6 V. The total current is