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Question
State the factors that can increase the speed of rotation of the coil in a D.C. motor.
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Solution
The speed of rotation of the coil in a D.C. motor can be increased by:
(i) Increasing the strength of the current, (ii) Having more turns in the coil,
(iii) Increasing the area of the coil, (iv) By increasing the strength of the magnetic field.
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