ExamPlay Dark Logo
로그인

WAEC - Physics (1991 - No. 40)

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?
450
0.9
900
567
43

설명

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

= 900\(\Omega\)

댓글 (0)

광고