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प्रश्न
State two ways by which the strength of the magnetic field of an electromagnet can be increased?
State two methods to increase the strength of an electromagnet.
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उत्तर
The magnetic field of the electromagnet can be increased in the following two ways:
- By inserting a rod of soft iron or steel inside the cylindrical tube. This rod is called the core.
- By increasing the total number of turns of the coil.
संबंधित प्रश्न
Write true or false for a given statement.
In an electromagnet, the core is made up of copper.
Write true or false for a given statement.
An electromagnet with soft iron core is a temporary magnet.
Fill in the blank
An electromagnet is used to separate large mass of ______ scrap.
Select the correct alternative
Electromagnets are made up of
Select the correct alternative
An electromagnet is used in
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State two common uses of electromagnets ?
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