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An inductor is connected to a 24V, 50Hz mains supply. If the current through the...

Physics
WAEC 2012
An inductor is connected to a 24V, 50Hz mains supply. If the current through the inductor is 1.5A, calculate the inductance of the inductor (\(\pi = \frac{22}{7}\))
  • A. 8.0 x 102H
  • B. 7.5 x 10oH
  • C. 1.6 x 10oH
  • D. 5.1 x 10-2H
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Correct Answer: Option D
Explanation
\(X_L = \frac{V}{I} = \frac{24}{1.5} = 16\Omega\)

L = \(\frac{XL}{2 \pi f} = \frac{16}{2 \pi 50}\)

= 0.05H
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