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प्रश्न
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 ?
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उत्तर
End A becomes S-pole and B becomes N-pole.
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संबंधित प्रश्न
Fill in the blank
An electromagnet is used to separate large mass of ______ scrap.
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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
What is an 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 ?
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.
