electricity 2

The positive electrode in a dry cell is

• copper

• carbon rod

• zinc case

• dilute sulphuric acid

The generator works with the principle

• potential energy converts to electrical energy

• electrical energy converts to kinetic energy

• chemical energy converts to electrical energy

• kinetic energy converts to electrical energy

A dynamo is an electric generator in which a __________rotates freely.

Switch is on in an open circuit.

• true

• false

A dry cell is also known as Leclanche cell

• true

• false

The electrolyte used in a dry cell is

• dilute sulphuric acid

• nitric acid

• zinc chloride paste

• ammonium chloride paste

Which one is not the example of a generator?

• steam turbine

• gas turbine

• water turbine

• inverter

Which one of the objects below has a circuit?

• 
• 
• 
• 

A closed switch on a diagram means the switch is...

• off

• on

Ron constructs this circuit. Both bulb and battery are all working. Which of these following actions he should do to lit the bulb?

• connect X to Y

• change the battery

• disconnect the wire from the battery

• remove the bulb