Class starter 1- Electric current

Electric current is the movement of

• electrons

• protons

• neutrons

• atoms

Which one is incorrect?

• Battery is a source of voltage

• Battery is a source of energy

• Battery provides electrons to a circuit

• Battery makes the elctrons move

Conventional current flows from the __________terminal to the ___________terminal of the battery in an external circuit

• positive, negative

• negative, positive

• positive, positive

• negative, negative

SI unit of current is

• ampere

• Ampere

• coulomb

• Coulomb

SI unit of charge is

• ampere

• Ampere

• coulomb

• Coulomb

This is symbol of

• Fuse

• switch

• Bulb

• wire

The given picture represents a

• wire

• switch

• cell

• fuse

Bulbs in the given picture are connected in

• series

• parallel

• mixed combination of series and parallel

• None of these

Which of the following components is used to measure electric current?

• Capacitor

• Voltmeter

• Ammeter

• Ohmmeter

How much voltage is there in the electric sockets (mains supply) in your physics lab?

• 230 V

• 2300 V

• 110 V

• 9 V