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प्रश्न
What is dynomo (a.c. generator)? State the principle on which it works.
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उत्तर
Dynamo (or a.c. generator) is a device which converts mechanical energy into electrical energy. It works on the principle of electromagnetic induction.
संबंधित प्रश्न
Suppose you are given a long bar magnet and you are asked to break it into four small magnets. Draw diagrams showing the polarities of each broken part.
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State the condition when an electric charge can give rise to a magnetic field.
What is a permanent magnet? Give one use of it.
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Write the answer in your word.
How is an electromagnet made?
