JAMB Physics 2014 Objective — Question 43

Question 43 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2014 Objective paper, with the correct answer and a full explanation.

Using the same diagram, the electromotive force in the secondary winding is

• A. increasingCorrect
• B. reducing
• C. stabilizing
• D. varying

Explanation

For a step-up transformer, the e.m.f (voltage) is increased in the secondary winding, since it has more turns than the primary.

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