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9 September, 07:17

31) The basic concept of how a simple motor works is explained by which statement?

A) When a fan blows on a wire, it causes it to spin creating a force.

B) When a fan blows on a wire, it causes it to spin, creating an electrical current.

C) When a wire that carries electrical current is placed in zero gravity, the wire experiences a force.

D) When a wire that carries electrical current is placed in a magnetic field, the wire experiences a force

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  1. 9 September, 07:39
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    When a wire that carries electrical current is placed in a magnetic field the wire experiences a force.

    Explanation:

    The electric motor is a device which convert electrical energy into mechanical energy ie when current carrying conductor is placed in magnetic field it experience a force. Flemings left hand rule explains the direction of the current.

    The electric motor works by attraction and repulsion of magnetic field.

    So the option d explains basic concept of simple motor ie when when current carrying wire is placed in the magnetic field it experience magnetic repulsive force.
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