Advertisements
Advertisements
प्रश्न
Take a glass of water with a few pins inside. How will you take out the pins without dipping your hands into water?
Advertisements
उत्तर
If we keep a strong bar magnet above the glass of water, all pins inside the water come up and attract the magnet.
APPEARS IN
संबंधित प्रश्न
______ will also get affected by magnetic field.
Analogy:
Electromagnet: Magnetic crane.
Ordinary magnet: ______.
Give the uses of magnets.
What are the uses of magnets?
What type of magnet is used in the Mangle train?
What is meant by a mag-stripe?
Write a note on:
Magstripe:
Three magnets A, B and C were dipped one by one in a heap of iron filing. Figure shows the amount of the iron filings sticking to them.
The strength of these magnets will be
Four identical iron bars were dipped in a heap of iron filings one by one. Figure shows the amount of iron filings sticking to each of them.
- Which of the iron bar is likely to be the strongest magnet?
- Which of the iron bars is not a magnet? Justify your answer.
Describe the steps involved in magnetising an iron strip with the help of a magnet.
