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प्रश्न
Tick the most appropriate answer.
The surest test of magnetism is
विकल्प
attraction
repulsion
diffusion
hammering
उत्तर
repulsion
संबंधित प्रश्न
Select the correct alternative
A freely suspended magnet rests in
You are given a magnet. How will you use it to find north-south direction at a place?
Explain the meaning of the term magnetic field ?
Give a reason for the following.
Iron is a magnetic substance.
Answer the following in short.
What is a magnet? Differentiate between natural and artificial magnets.
Which magnet will you use?
You are lost in a forest.
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
The alloys called ______ and ______ are used for making industrial magnets.
With whom should I pair up?
| Group 'A' | Group 'B' |
| (a) Compass | 1. The highest magnetic force |
| (b) The door of a cupboard | 2. Like poles |
| (c) Repulsion | 3. A magnet |
| (d) Magnetic pole | 4. A magnetic needle |
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Mark on the diagram the poles of the second magnet,
Draw the magnetic flux pattern near a bar magnet placed with its axis in the magnetic meridian and the south pole pointing towards geographic north.
Define the term Magnetic axis
Give scientific reason:
Not attraction but repulsion is a sure test of magnetism.
Distinguish between
Natural and artificial magnets.
MRI stands for _______.
Why it is not advisable to slide a magnet on an iron bar back and forth during magnetising it?
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?
