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Magnetism and Electromagnetism - Interview Questions and Answers

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71. The susceptibility of paramagnetic materials generally lies between
A. KT3 and 1CT6
B. 1CT3 and 1CT7
C. KT4 and KT8
D. 10"2 and KT5
Explanation:
72. The bar magnet has
A. the dipole moment
B. monopole moment
C. (a) and (b) both
D. none of the above
Explanation:
73. What will be the current passing through the ring shaped air cored coil when number of turns is 800 and ampere turns are 3200 ?
A. 2
B. 4
C. 6
D. 8
Explanation:
74. Core of an electromagnet should have
A. low coercivity
B. high susceptibility
C. both of the above
D. none of the above
Explanation:
75. The attraction capacity of electromagnet will increase if the
A. core length increases i
B. core area increases
C. flux density decreases
D. flux density increases
Explanation:
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