State what would happen to the direction of rotation of a motor if:
Both the current and magnetic field were reversed simultaneously.

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The current will get reversed

The magnetic field will get reversed

The direction of rotation would remain unchanged

Will form sine wave

answer is C.

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Detailed Solution

If both the current and magnetic field were reversed simultaneously, the direction of rotation would remain unchanged.

An electric motor, also called a DC motor, works on the principle that when a current-carrying conductor is placed in a magnetic field, it experiences a torque. The torque produced can be used for obtaining mechanical work.
If both the current and magnetic field is reversed simultaneously, the direction of rotation of the motor will remain the same because both effects negate each other, and the system remains identical.

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