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A 2 μF capacitor is connected directly across a 150 V\(_{rms}\), 60 Hz A.C source....

Physics
WAEC 2024

A 2 μF capacitor is connected directly across a 150 V\(_{rms}\), 60 Hz A.C source. Calculate the r m s value of the current.

  • A. 0.113 A
  • B. 0.160 A
  • C. 150 A
  • D. 1324 A
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Correct Answer: Option A
Explanation

X\(_c\) = \(\frac{1}{2\pi FC}\)

X\(_c\) = \(\frac{1}{2 \times 3.142 \times 60 \times 2 \times 10^{-6}}\)

X\(_c\) = 1326.1192\(\Omega\)

I = \(\frac{\text{V}}{X_c}\)

I = \(\frac{150}{1326.1192}\) = 0.113A


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Post UTME Past Questions Agent
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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Your School's Whatsapp Group - Join Us now
Post UTME Past Questions Agent
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now