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प्रश्न
Artificial magnets are made in different shapes such as ______, _____ and _______.
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उत्तर
Artificial magnets are made in different shapes such as Bar-magnet, Horseshoe magnet, and Ring magnet.
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संबंधित प्रश्न
Fill in the blank
Like poles ______ each other and unlike poles _____
Describe a simple experiment to illustrate that like poles of two magnets repel each other while the unlike poles attract ?
Match the following
| Column A | Column B |
| A) Steel | 1) to store magnets |
| B) Soft iron | 2) temporary magnet |
| C) Use in electric bell | 3) permanent magnet |
| D) Magnetic keepers | 4) electromagnet |
State four important properties of a bar magnet?
State three important uses of a magnet.
State if the following statement is true or false. Correct the statement if it is false.
As we move away from a magnet, its attraction power weakens.
How will you do this?
Determine whether a material is magnetic or non-magnetic.
The alloys called ______ and ______ are used for making industrial magnets.
Fill the blank spaces in the table given below:
| Nature of bar | Action of compass needle | |
| North Pole | South Pole | |
| Non-magnetic | No action | ________ |
| ________ | attracted | attracted |
| North pole of a bar magnet | ________ | _________ |
| ________ | attracted | repelled |
Draw lines of force surrounding a bar magnet when it is placed in the magnetic meridian with its north pole pointing geographic south.
Give scientific reason:
Soft iron is used to make electromagnets.
Explain the following:
Resistance of a conductor
Draw the magnetic field lines around a bar magnet when a bar magnet is placed such that the N pole points North.
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.
State the laws of magnetism.
People who made mariner’s compass for the first time.
Thamizh Dharaga and Sangamithirai were playing with a bar magnet. They put the magnet down and it broke into four pieces. How many poles will be there?
Observe the pictures A and B given in figure carefully.
Which of the following statement is correct for the above given pictures?
Define natural magnet.
