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प्रश्न
Select the correct alternative
Electromagnets are made up of
विकल्प
steel
copper
brass
soft iron
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उत्तर
soft iron.
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संबंधित प्रश्न
Write true or false for a given statement.
In an electromagnet, the core is made up of copper.
Fill in the blank
An electromagnet is used to separate large mass of ______ scrap.
Fill in the blank
The strength of the magnetic field of an electromagnet is increased by inserting a core of soft ______
Select the correct alternative
An electromagnet is used in
Select the correct alternative
The purpose of armature in an electric bell is
Name the material of an electromagnet?
Draw a labelled diagram to make a soft iron bar as an electromagnet. Describe in steps the procedure ?
Name two factors on which the strength of magnetic field of an electromagnet depends ?
State two ways by which the strength of magnetic field of an electromagnet can be increased ?
Describe the construction and working of an electric bell with the help of a diagram.
