Advertisements
Advertisements
प्रश्न
Three magnets A, B, and C were dipped one by one in a heap of iron filing. Fig. 13.3 shows the amount of iron filings sticking to them.
The strength of these magnets will be
विकल्प
A > B > C
A < B < C
A = B = C
A < B < C
उत्तर
A > B > C
Explanation:
The more the strength of the magnet, the more will be the iron filings stuck to it.
APPEARS IN
संबंधित प्रश्न
You are provided with an iron needle. How will you magnetize it?
Analogy:
Electromagnet: Magnetic crane.
Ordinary magnet: ______.
What are the objects affected by a 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:
The arrangement to store two magnets is shown by figures (a), (b), (c) and (d) in Fig. 13.2. Which one of them is the correct arrangement?
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 Fig. 13.7.
What inference could he draw from this observation? Explain.