Page 526 - Basic Electrical Engineering
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c. Wb-Cm
d. Wb/m2.
9. A magnetic circuit of uniform cross-sectional area of length 50 cm is wound uniformly by 250
turns of a coil and carries a current of 4 A. The magnetic field strength or the magnetizing
force produced is
a. 1000 AT/m
b. 2000 AT/m
c. 1000 AT/cm
d. 2000 AT/cm.
10. Self inductance of a coil can be expressed as
a.
b.
c.
d. .
11. Coupling co-efficient, k of a mutual inductor is
a.
b.
c.
d. .
