How do Eddy Currents flow in a conductor?
Correct answer: B. In closed loops
- A. Straight
- B. In closed loops
- C. In open loops
- D. All of these
Explanation
Eddy currents are loops of electrical current induced within conductors by a changing magnetic field in the conductor, due to Faraday's law of induction. These currents flow in closed loops perpendicular to the direction of the magnetic field. Option B is correct as it correctly describes the closed-loop nature of eddy currents. Option A is incorrect because eddy currents do not flow in straight lines. Option C is incorrect because eddy currents require closed paths, not open ones. Option D is incorrect because eddy currents do not exhibit all the described behaviors; they specifically flow in closed loops.
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Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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