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Physics 1999 WAEC Past Questions

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31

Using the data on the diagram above, calculate the potential difference across the 20- Ω resistor. (Neglect the internal resistance of the cell)

  • A. 5V
  • B. 10V
  • C. 20V
  • D. 60V
View Answer & Discuss (12) WAEC 1999
32

Using the diagram above, calculate the effective capacitance of the circuit

  • A. 1.56μf
  • B. 3.00μF
  • C. 3.71μF
  • D. 9.00μF
View Answer & Discuss (7) WAEC 1999
33
The parts of a bar magnet at which the magnetic effect is strongest are called the
  • A. poles
  • B. neutral points
  • C. magnetic declinations
  • D. magnetic meridians
View Answer & Discuss WAEC 1999
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
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34
A resistance wire of length 2 m and of uniform cross-sectional area 5.0 x 10-7 m2 has a resistance of 2.2 Ω Calculate its resistivity
  • A. 1.8 x 10-7Ωm
  • B. 5.5 x 10-7Ωm
  • C. 1.8 x 10-7Ωm
  • D. 5.8 x 107Ωm
View Answer & Discuss (7) WAEC 1999
35
Magnetic flux density is defined as the
  • A. total number of magnetic lines of force surrounding a magnet
  • B. number of magnetic lines of force per unit area normal to the magnetic field
  • C. strength of the magnetic field surrounding a current-carrying conductor
  • D. magnetic force exerted on a unit magnetic pole
View Answer & Discuss WAEC 1999
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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208