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Which of the following operates based on magnetic effect of electric current?

Physics
JAMB 2024

Which of the following operates based on magnetic effect of electric current?

  • A. electric heater
  • B. photocell
  • C. Dynamo
  • D. Cold cathode
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Correct Answer: Option C
Explanation

A dynamo converts mechanical energy into electrical energy using the principle of electromagnetic induction, which is a magnetic effect of electric current.

There is an explanation video available below.

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Explanation Video

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WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
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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