The force exerted on a wire of one meter length carrying one ampere of current placed at a right angle to the field is called:
Correct answer: D. Magnetic induction
- A. Lorentz force
- B. Self inductance
- C. Magnetic flux
- D. Magnetic induction
Explanation
Magnetic induction, also known as magnetic flux density (B), is defined as the force per unit current per unit length on a wire placed perpendicular to the field. From F=ILB, B = F/IL, which matches the definition given in the question.
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About Electromagnetism
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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