Search SchoolNGR

Saturday, 15 August 2026
Register . Login

Physics Past Questions and Answers

Topic: Reduction of eddy current

Jamb Physics Questions - Reduction of eddy current

Question 1:
The core of an efficient transformer should consist of laminated pieces of metal in order to
  • A Increase the heat produced by increasing the eddy current
  • B Increase the heat produced by reducing the eddy current
  • C Reduce the heat produced by increasing the eddy current
  • D Reduce the heat produced by reducing the eddy current
View Answer & Explanation
Question 2:
The core of an efficient transformer should consist of laminated pieces of metal in order to
  • A Increase the heat produced by increasing the eddy current
  • B Increase the heat produced by reducing the eddy current
  • C Reduce the heat produced by increasing the eddy current
  • D Reduce the heat produced by reducing the eddy current
View Answer & Explanation
Question 3:
Transformers are designed so that energy losses are reduced to a minimum. This is achieved through those process.
I. Using a soft iron ore
II. Laminating the iron core to reduce energy loses due to eddy current
III. Designing an efficient iron core
  • A I & II only
  • B II only
  • C I, II, & III only
  • D III only
View Answer & Explanation