Question

 (a) write expression for magnetic force on a current carrying conductor placed in magnetic field. (b) A DC motor is rotating in clockwise direction how can the direction of rotation be reversed.​

Answer 1

Answer:

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Explanation:

a) The force on a current-carrying wire in a magnetic field is F=πBsinθ. Its direction is given by RHR-1.

b)The direction of rotation of the motor can be reversed by reversing the direction of current through the coil. This can be achieved by interchanging the terminals of the battery connected to the brushes of the motor.

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