Electric Current and Its Effect

When the switch is in the ‘ON’ position, the electric circuit is said to be:-

• a) Closed

• b) open

• c) complete

• Both a) and c)

In a bulb there is a thin wire called:-

• Element

• Filament

• Fuse wire

• Coil

When electric current passes through a wire, it behave like a______.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Circuit breaker device which can be used in place of fuse in domestic electric wiring is called:-

• MCB

• CCB

• MCD

• None of these

When the circuit is closed, the electric current does not flow throughout the circuit.

• True

• False

When the switch is on the circuit from the positive to negative terminal is complete

• True

• False

Which of these following cannot be harmed by electric current

• Plastic

• Rubber

• A & B

• All of the above

Wires made from some special materials melt quickly and break when a large electric current passes through it.these wires are used to make

• Fuses

• Electric fuses

• A&B

• Electromagnet

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Who was the first person to notice the deflection of compass needle everytime the current passes through the wire.

• Hans Christian Andersen

• Hans Christian oersted

• Hans Christian mandorson

• None of the above

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

When the current goes off the coil generally loses its magnetism. Such coils are called

Tags

NGSS.MS-PS2-3