Advertisements
Advertisements
Question
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
Advertisements
Solution
Permanent magnet can be used to stop the continuous shuttering of the window in the wind.
RELATED QUESTIONS
Match the following
| Column A | Column B |
| (a). Human body | (1). electric bell |
| (b). Silk thread | (2). current |
| (c). Charge in motion | (3). conductor |
| (d). soft iron | (4). electromagnet |
| (e) . Electromagnet | (5). insulator |
Write true or false of the following statement.
Copper cannot be magnetised.
Answer the following in short.
If a bar magnet is placed over iron filings, where will the attraction of the iron fillings be
- maximum?
- minimum?
There is repulsion between the _____ poles of a magnet and attraction between its _____ poles.
If a magnet attracts a piece of metal, that piece must be made of ______.
A magnet remains steady in a ________ direction.
Describe two simple experiments to support the statement that magnetism is a property of the molecules of a magnet.
Write a short note on lighting conductors.
What is meant by electrostatic induction? You have been given two metal containers A and Band a positively charged body X. With the help of a diagram, explain the different stages of charging - A positively, and B negatively.
