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प्रश्न
Name a domestic device in which an electromagnet is used ?
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उत्तर
Electromagnet is used in ELECTRICAL APPLIANCES like ELECTRIC BELL, RADIO, T.V., FAN and MOTORS etc.
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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
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
What is an electromagnet?
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.
