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प्रश्न
Fill in the blank
An electromagnet is used to separate large mass of ______ scrap.
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उत्तर
An electromagnet is used to separate large mass of iron scrap.
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संबंधित प्रश्न
Write true or false for a given statement.
An electric bell uses an electromagnet.
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
Electromagnets are made up of
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 ?
State two ways by which the strength of magnetic field of an electromagnet can be increased ?
Name a domestic device in which an electromagnet is used ?
The following diagram shows four circuits A, B, C and D. Each circuit has a cell and a torch bulb. Name the circuits in which the bulb will glow? Give reason to your answer.
