Science

Question 1

1In a parallel circuit, each bulb has its own path.

Easy

A. True B. False

Question 2

2A current of 3 A flows through a resistor of 12 Ω. Find the voltage across it.

Medium

A. 36 V B. 15 V C. 4 V D. 72 V

Question 3

3The unit of resistance is the

Easy

A. ampere B. ohm C. newton D. volt

Question 4

4An instrument used to measure current is the

Easy

A. barometer B. ammeter C. voltmeter D. thermometer

Question 5

5Using V = IR, a current of 3 A through 10 Ω gives a voltage of ___ V.

Easy

Your answer (fill in the blank)

Question 6

6In a parallel circuit, if one bulb breaks,

Medium

A. all bulbs go off B. the other bulbs stay on C. current stops everywhere D. the battery explodes

Question 7

7Using V = IR, a current of 4 A through 6 Ω gives a voltage of ___ V.

Easy

Your answer (fill in the blank)

Question 8

8A current of 5 A flows through a resistor of 5 Ω. Find the voltage across it.

Medium

A. 10 V B. 1 V C. 50 V D. 25 V

Question 9

9A complete path through which current flows is a

Easy

A. short fuse B. open circuit C. closed circuit D. broken wire

Question 10

10The unit of voltage (potential difference) is the

Easy

A. ampere B. joule C. volt D. ohm