Electric Circuits and Electromagnets

Which one is the circuit diagram of this picture?

• 
• 
• 
• 

What will happen if one light bulb is removed from this circuit?

• The other bulbs will go out.

• The other bulbs will stay on

• The other bulbs will get dimmer.

• The battery will become stronger.

Magnets can be used to make electric motors and generators.

• True

• False

Tags

NGSS.MS-PS2-3

Which electromagnet is stronger?

• A

• B

Tags

NGSS.MS-PS2-3

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

What is true about electromagnets? (Select all correct options)

• Their magnetism can be altered

• When electric current is switched off, it does not behave like a magnet.

• They cannot be as strong as a permanent magnet

• Magnetism in electromagnet is natural.

Tags

NGSS.MS-PS2-3

Turning off an electric light creates a(n) _____ path

• open

• divided

• continuous

• broken

If a positive terminal of one cell is connected to the negative terminal of the next cell it is known as

• Electric current

• Fuse

• Battery

• Element

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-PS3-4

A _________ is a safety device which prevents damages to electrical circuits and possible fires.

• Battery

• Fuse

• Wire

• none of the above