Advertisements
Advertisements
प्रश्न
Describe the steps involved in magnetising an iron strip with the help of a magnet.
Advertisements
उत्तर
The following steps may be used to magnetise an iron strip using a magnet:
-
Lay down the required iron strip to be magnetised on a solid wood surface.
-
Place a bar magnet in your hands with one end on one edge of the strip and the other end on the other.
-
Move the magnet along the length of the strip without lifting it until you reach the opposite edge.
-
Repetition of the preceding stages.
-
Place the iron fillings on the strip and expand them. If it is attracted, the strip will become magnetised; if not, repeat the procedures a few times more.
APPEARS IN
संबंधित प्रश्न
Take a glass of water with a few pins inside. How will you take out the pins without dipping your hands into water?
______ will also get affected by magnetic field.
Give the uses of magnets.
What is meant by a mag-stripe?
Write a note on the Mangle train.
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
In a bar magnet, magnetic attraction is ______ near its ends.
Boojho kept a magnet close to an ordinary iron bar. He observed that the iron bar attracts a pin as shown in the following figure.
What inference could he draw from this observation? Explain.
Suggest an arrangement to store a U shaped magnet. How is this different from storing a pair of bar magnets?
