The change of cross-sectional area of conductor in magnetic field will affect______________?
Correct answer: C. A. and B. both in the same way
- A. reluctance of conductor
- B. resistance of conductor
- C. A. and B. both in the same way
- D. none of the above
Explanation
Both resistance, R = ρl/A, and magnetic reluctance, S = l/(μA), vary inversely with cross-sectional area. Increasing the area therefore decreases both quantities in the same way.
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