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प्रश्न
State three ways in which the strength of an electromagnet can be increased.
उत्तर
Strength of an electromagnet can be increased in the following three ways:
1. By increasing the number of turns in the coil of the electromagnet
2. By increasing the flow of current in the coil of the electromagnet
3. By reducing the length of air gap between the poles of the electromagnet
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संबंधित प्रश्न
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