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Calculate the inductance L  of the COIL in the circuit shown above 

Physics
WAEC 2025

Calculate the inductance L  of the COIL in the circuit shown above 

  • A. 3.8 H
  • B. 0.4 H
  • C. 0.6 H
  • D. 14.4 H
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Correct Answer: Option C
Explanation

V = I X\(_L\)

X\(_L\) = \(\frac{\text{V }}{\text{I}}\) = \(\frac{240}{2}\) = 120 Ω

But X\(_L\) = 2\(\pi\)fL

120 = 2 x 2\(\pi\) x \(\frac{100}{\pi}\) x L

120 = 2 x 100 x L = 200L

L = \(\frac{120}{200}\) = 0.6H

 


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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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