CURRENT ELECTRICITY-ELECTRIC CURRENT

SI unit of current is

• Ohm

• Ampere

• Coulomb

• Coulomb second

Current in a conductor is due to

• Ions

• Protons

• Electrons

• Both ions and electrons

Device used to measure electric current is

• Voltmeter

• Ammeter

• Barometer

• Odometer

Identify the correct equation for electric current

• I=Q t

• I=Q^2/t

• I=Q/t

• i=Q/t^2

SI unit of electric charge is

• Joule

• Volt

• Ampere

• Coulomb

A current of 10 A is passing through a lamp. What charge will pass through it in 20 seconds?

• 50 C

• 5 C

• 200 C

• 20 C