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If the frequency of the e.m.f. source in the a.c. circuit illustrated above is \(\frac{500}{\pi}\)Hz....

Physics
WAEC 1991

If the frequency of the e.m.f. source in the a.c. circuit illustrated above is \(\frac{500}{\pi}\)Hz. What is the reactance of the inductor?

  • A. 450
  • B. 0.9
  • C. 900
  • D. 567
  • E. 43
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Correct Answer: Option C
Explanation

x = 2\(\pi f L = 2\pi \times \frac{500}{\pi} \times 0.9\)

= 900\(\Omega\)

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