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  4. What should be the frequency of alternating 200 V supply so as to pass a maximum current of 0.9 A through an inductance of 1 henry?

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Q. What should be the frequency of alternating $200 V$ supply so as to pass a maximum current of $0.9 A$ through an inductance of 1 henry?

Alternating Current

Solution:

As we know that
$X_{L}=\omega L=2 \pi V L=\frac{E_{0}}{I_{0}}$
$X_{L}=\frac{\sqrt{2} E_{m s}}{I_{0}}$
$=\frac{1.414 \times 200}{2 \times \frac{22}{7} \times 1 \times 0.9}$
$v=50 Hz$