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प्रश्न
The incomplete diagram of an electric bell is given in fig. Complete the diagram and label its different parts ?
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उत्तर
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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 two factors on which the strength of magnetic field of an electromagnet depends ?
State two ways by which the strength of the magnetic field of an electromagnet can be increased?
State two common uses of electromagnets ?
Name a domestic device in which an electromagnet is used ?
Describe the construction and working of an electric bell with the help of a diagram.
