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प्रश्न
Write true or false for a given statement.
An electric bell uses an electromagnet.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
Write true or false for a given statement.
An electromagnet with soft iron core is a temporary magnet.
Fill in the blank
An electromagnet is used to separate large mass of ______ scrap.
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
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 ?
Name a domestic device in which an electromagnet is used ?
The incomplete diagram of an electric bell is given in fig. Complete the diagram and label its different parts ?
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.
