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JAMB Physics 2021 Objective — Question 14

Question 14 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2021 Objective paper, with the correct answer and a full explanation.

Iron core of induction coil made from bundles of wires to:

A. obtain high secondary voltage
B. minimize eddy-currentsCorrect
C. prevent sparking
D. generate eddy-currents

Explanation

Lamination/bundling increases resistance to eddy currents, minimising losses.

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