Magnetism and Electromagnetism - Interview Questions | Exam2Win

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46. The change of cross-sectional area of conductor in magnetic field will affect

A. reluctance of conductor

B. resistance of conductor

C. (a) and (b) b >th in the same way

D. none of the above

Explanation:

47. Which of the following statements is correct ?

A. The magnetic flux inside an exciting coil is lower than its outside surface

B. The magnetic flux inside an exciting coil is zero

C. The magnetic flux inside the exciting coil is greater than its outside surface

D. The magnetic flux inside the exciting coil is same as on its outside surface

Explanation:

48. Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials.

A. circular

B. triangular

C. rectangular

D. none of the above

Explanation:

49. Magnetic moment is a

A. pole strength

B. universal constant

C. scalar quantity

D. vector quantity

Explanation:

50. A permanent magnet

A. attracts some substances and repels others

B. attracts all paramagnetic substan�ces and repels others

C. attracts only ferromagnetic sub�stances

D. attracts ferromagnetic substances and repels all others

Explanation:

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