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Factors on which Magnetic Force Depends:
The magnetic force depends on following factors:
1. Nature of Pole: Like poles repel each other and unlike pole attract each other.
2. Distance among the poles:
3. Magnetic force is directly proportional to the square of the distance among the two poles.
4. Strength of the poles: The greater the strength of the poles the stronger the magnetic field.
Alternating Current: (AC) Such a current can be obtained if a resistor is linked in series with a source of alternating voltage. This current alters its direction so many times
describe and explain the operation of a transformer
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