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6

The total power drawn from the cell in the circuit above is

  • A. 12W
  • B. 24W
  • C. 32W
  • D. 40W
View Answer & Discuss (8) JAMB 1989
7

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
8

An electrical device has 50 turns in its primary coil  and 20 turns in the secondary coil. The device can be a\an?

 

  • A. step-up transformer
  • B. step-down transformer
  • C. d.c generator
  • D. a.c generator
View Answer & Discuss (3) WAEC 2020
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9

In doping an intrinsic semiconductor to produce a p-type semiconductor,

  • A. the semiconductor is heated up
  • B. a donor element is added
  • C. an acceptor element is added
  • D. the semiconductor is conducted to a battery
View Answer & Discuss WAEC 2022
10

The terminals of a battery of emf 24.0 V and internal resistance of 1.0 Ω is connected to an external resistor 5.0 Ω. Find the terminal p.d.

  • A. 18.0V
  • B. 12.0V
  • C. 16.0V
  • D. 20.0V
View Answer & Discuss (1) JAMB 2023
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