If the frequency of the e.m.f. source in the a.c. circuit il...
If the frequency of the e.m.f. source in the a.c. circuit illustrated above is 500πHz. What is the reactance of the inductor?
A.
450
B.
0.9
C.
900
D.
567
E.
43
Correct answer is C
x = 2πfL=2π×500π×0.9
= 900Ω
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