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Like poles ______ each other and unlike poles _____
Fill in the blank
To light a table lamp and to run a refrigerator, we use ______ as the source of electricity.
Answer the following in detail.
How can a magnet be demagnetized?
How will you do this?
Explain that a magnet has a certain magnetic field.
A magnet remains steady in a ________ direction.
Select the correct option:
The place around a magnet where its influence can be detected is called:
Draw lines of force surrounding a bar magnet when it is placed in the magnetic meridian with its north pole pointing geographic south.
Draw the magnetic field lines around a bar magnet when a bar magnet is placed such that the N pole points North.
With the help of a diagram explain the following:
Magnetisation of an iron bar by a single touch method.
Differentiate between:
Primary and secondary cell.
