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The relation between the direction of current and the direction of magnetic field is?

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in Basic Electrical Engineering by (88.7k points)
The relation between the direction of current and the direction of magnetic field is?

(a) Same direction

(b) Opposite direction

(c) Perpendicular

(d) Unrelated

This question was posed to me in quiz.

This intriguing question comes from Magnetomotive Force and Magnetic Field Strength in chapter Simple Magnetic Circuits of Basic Electrical Engineering

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The correct option is (c) Perpendicular

The explanation is: When a conductor carries a certain value of current, the force developed in the conductor, the current in the conductor and the magnetic field in the conductor are mutually perpendicular to each other.

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