Advertisements
Advertisements
प्रश्न
Write true or false of the following statement.
Permanent magnets get easily demagnetised.
पर्याय
True
False
Advertisements
उत्तर
False.
Permanent magnets can not be demagnetised.
APPEARS IN
संबंधित प्रश्न
Write true or false of the following statement.
Artificial magnets are weaker than the natural magnets.
Select the correct answer
The artificial magnet used to detect direction in the laboratory is
Describe the method by which an iron bar can be made a magnet.
State three differences between the temporary and permanent magnets.
Fill in the blank.
Permanent magnets are generally made of steel, cobalt, nickel, or an alloy called ...............
State if the following statement is true or false. Correct the statement if it is false.
Temporary magnets are made of cobalt.
Answer the following in detail.
Distinguish between a temporary magnet and a permanent magnet.
Write true or false of the following statement.
Single touch method is better than the electrical method for making a magnet.
Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks.
| Column I | Column II |
| N - N | ______ |
| N - ______ | Attraction |
| S - N | ______ |
| ______ - S | Repulsion |
You are given an iron strip. How will you make it into a magnet?
