Electricity

Nuclear of an atom consists of ......

• proton

• neutron

• electron and proton

• proton and neutron

Proton is neutral

• true

• false

Electron is ......

• negative charge

• positive charge

• neutral

The flowing of electrons is the electric current in ......

• solid

• liquid

• gas

• plasma

The direction of the flowing electron in wire is from (+) to (-)

• false

• true

What is this symbol?

• resistor

• fuse

• variable resistor

• diode

We use this device to measure ......

• electric current

• light intensity

• voltage

• resistance

What is the function of diode?

• slow the current down

• allow the current flow in one direction

• protect the electric circuit

• change the voltage

We measure the electric current by .....

• ammeter

• voltmeter

• thermometer

• ruler

A simple circuit includes ........