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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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3581
Which of the following statements is not correct about steel and soft iron?
  • A. steel is more magnetized than soft iron
  • B. permanent magnets are usually made of steel
  • C. soft iron is more readily magnetized than steel
  • D. soft iron more readily loses its magnetism than steel
View Answer & Discuss (4) WAEC 2016
3582
What determines the polarity at the ends of an electromagnet? The
  • A. magnitude of the current passing through the wire
  • B. material of the core of the magnet
  • C. material of the coil
  • D. direction of current in the wire
View Answer & Discuss WAEC 2016
3583
How many beta particle(s) are emitted in the radioactive decay of \(^{198}_{79}Au \leftarrow ^{198}_{80}Hg\)?
  • A. 1
  • B. 2
  • C. 3
  • D. 5
View Answer & Discuss (1) WAEC 2016
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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3584
The phenomenon by which two light atomic nuclear combine to form a heavy nuclide with the release of energy is known as
  • A. radioactivity
  • B. nuclear fusion
  • C. nuclear fission
  • D. chain reaction
View Answer & Discuss (4) WAEC 2016
3585

In a p-type semiconductor, the?

  • A. number of holes are equal to the number of electrons
  • B. electrical resistivity increases
  • C. electrons are the majority charge carriers
  • D. holes are the majority charge carriers
View Answer & Discuss (2) WAEC 2016
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