Advertisements
Advertisements
प्रश्न
With the help of a diagram explain the following:
Magnetisation of steel needle using electric current such that the pointed end should have north polarity.
Advertisements
उत्तर
The magnetisation of steel needle using electric current: Wind a length of copper wire around a steel needle and connect it to battery and switch. After the current is passed through the copper wire for some time, we will notice that the steel needle got magnetised.
APPEARS IN
संबंधित प्रश्न
How will you do this?
Determine whether a material is magnetic or non-magnetic.
When magnetic material is taken close to a magnet, the material acquires ______.
The alloys called ______ and ______ are used for making industrial magnets.
Select the correct option:
The place around a magnet where its influence can be detected is called:
Draw the magnetic flux pattern near a bar magnet placed with its axis in the magnetic meridian and the south pole pointing towards geographic north.
Give scientific reason:
Two steel needles hanging from the lower end of a vertical bar magnet do not hang vertically.
Maximum iron filings stick in the middle of a bar magnet when it is brought near them.
MRI stands for _______.
List out the uses of magnets.
