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प्रश्न
Fill in the blank
The strength of the magnetic field of an electromagnet is increased by inserting a core of soft ______
उत्तर
The strength of magnetic field of an electromagnet is increased by inserting a core of 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.
Write true or false for a given statement.
An electric bell uses an electromagnet.
Select the correct alternative
Electromagnets are made up of
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An electromagnet is used in
Select the correct alternative
The purpose of armature in an electric bell is
Name the material of an electromagnet?
You are given a U shaped soft iron piece, insulated copper wire and a battery. Draw a circuit diagram to make a horse shoe electromagnet ?
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 ?
State two common uses of electromagnets ?
