Can we use electric current to make a magnet? - Vidyadip

Question

Can we use electric current to make a magnet?

✓

Answer

Yes, the magnetic effect of the electric current is used to make a magnet. If an electric current is passed through a long conducting wire coiled around a metal nail or rod, the nail or rod becomes a magnet during the flow of the current. When the electric current flow stops, the nail or the rod does not have a magnetic force.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "questions in short. [3 marks ]" from Electricity: Magnetic and Heating Effects→Electricity: Magnetic and Heating Effects — all question types→Science STD 8 question papers→Gujarat Board STD 8 question papers→Gujarat Board question paper generator→

Similar questions

When a copper object is exposed to moist air for a long time, then a green coating is formed on its surface.
$a.$ What is the material of the green coating?
$b.$ State whether the green coating is acidic or basic.

An earthquake measures $2$ on the Ritcher scale, would it be recorded by seismograph?

Arrange the following sounds in the order of increasing frequencies $($keeping the sound of lowest frequency first$):$
$a.$ Baby's voice.
$b.$ Man's voice.
$c.$ Woman's voice.

Why should we avoid standing close to a tuberculosis patient while he/ she is coughing?

What is meant by the ‘primary sexual characteristics’ in humans? State two primary sexual characteristics in boys and two in girls.

Describe the sprinkler system of irrigation. State its advantages.

What are the constituents of coal gas? State one use of coal gas.

State whether plastic is biodegradable or non-biodegradable? Give reasons for your answer.

What is the nature $($acidic/ basic$)$ of the following oxides?
$a.$ Magnesium oxide
$b.$ Sulphur dioxide
Given reason for your choice.

Give reasons for the following: $\text{LPG}$ is a better domestic fuel than wood.