A current carrying conductor is placed in a uniform magnetic field parallel to it. The magnetic force experienced by the conductor is _____________________?
Correct answer: C. F/0
- A. F=1/B
- B. F=1/Bsinθ
- C. F/0
- D. F=1/Bcosθ
Explanation
The magnetic force on a current-carrying conductor is F = BIL sinθ. When the conductor is parallel to the field, θ = 0° and sin0° = 0, so F = 0 N. The likely wrong choice is d, which incorrectly uses cosθ and would predict a maximum force for a parallel conductor.
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About Magnetic Flux Density
Magnetic flux density measures the magnetic force acting on a current carrying conductor or moving charge in a magnetic field. Work includes the relations B equals F divided by IL and F equals qvB, the tesla as its SI unit, field direction and the distinction between flux density and magnetic flux.
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