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Magnetism and Electromagnetism - Interview Questions and Answers

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36. A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be
A. 240 N
B. 24 N
C. 2.4 N
D. 0.24 N
Explanation:
37. One telsa is equal to
A. 1 Wb/mm2
B. 1 Wb/m
C. 1 Wb/m2
D. 1 mWb/m2
Explanation:
38. Unit for quantity of electricity is
A. ampere-hour
B. watt
C. joule
D. coulomb
Explanation:
39. The magnetism left in the iron after exciting field has been removed is known as
A. permeance
B. residual magnetism
C. susceptance
D. reluctance
Explanation:
40. Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per metre of length of each conductor will be
A. 100 N
B. 10 N
C. 1 N
D. 0.1 N
Explanation:
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