Electricity

6. A circuit has a resistance of 10Ω and a current of 2A. What is the voltage across the circuit?

a) 5V

b) 20V

c) 2V

d) 12V

7. Which material is a good conductor of electricity?

a) Wood

b) Rubber

c) Copper

d) Plastic

8. What is the resistance of a circuit if the voltage is 6V and the current is 2A?

a) 8Ω

b) 3Ω

c) 12Ω

d) 3.5Ω

9. What is the SI unit of electric power?

a) Ampere

b) Ohm

c) Volt

d) Watt

10. What is the resistance of a circuit if the voltage is 20V and the current is 4A?

a) 5Ω

b) 10Ω

c) 80Ω

d) 16Ω