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Physics 2008 WAEC Past Questions

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31
A negatively charged rod is held close to an uncharged metal ball on an insulating stand. The ball will
  • A. be negatively chargeed
  • B. be positively charged
  • C. have an excess negatively charges on the side nearest the rod
  • D. have an excess positively charges on the side nearest the rod
View Answer & Discuss (2) WAEC 2008
32

Two bodies each carrying a charge of 2.00 x 10-10C are 5cm apart. Calculate the magnitude of the force between the charges.[\(\frac{1}{4\pi \mathit{E}_o} = 9.00 \times 10^9 Nm^2C{-2}\)]

  • A. 1.44 x 10-7N
  • B. 7.20 x 10-9N
  • C. 7.20 x 10-11N
  • D. 1.44 x 1011N
View Answer & Discuss (4) WAEC 2008
33
If the charge on an object is measured as 4.0 x 10-18C, how many excess electrons does the object possess, given that the charge of an electron is 1.6 x 10-18C
  • A. 18
  • B. 19
  • C. 25
  • D. 37
View Answer & Discuss (1) WAEC 2008
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34
Which of the following is a unit of the time rate of flow of electric charges?
  • A. coulomb
  • B. ampere
  • C. volt
  • D. watt
View Answer & Discuss (1) WAEC 2008
35
A wire 1.0m long and with cross-sectional area 2.0 x 10-7 m2 has a resistance of 0.1\(\Omega\). Calculate the electrical conductivity of the wire
  • A. 2.0 x 107\(\Omega^{-1} m^{-1}\)
  • B. 5.0 x 107\(\Omega^{-1} m^{-1}\)
  • C. 2.0 x 108\(\Omega^{-1} m^{-1}\)
  • D. 5.0 x 108\(\Omega^{-1} m^{-1}\)
View Answer & Discuss (7) WAEC 2008
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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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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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