Write any two methods of causing magnetic field
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Answer:
- Magnetic force between two currents going in the same direction.
- Magnetic force between two currents going in opposite directions.
- Induced current in a wire.
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Answer:
There are two basic ways which we can arrange for charge to be in motion and generate a useful magnetic field: We make a current flow through a wire, for example by connecting it to a battery. As we increase the current (amount of charge in motion) the field increases proportionally.
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