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2966
A cell whose internal resistance is 0.5Ω delivers a current of 4A to an external resistor,The loss voltage of the cell is
  • A. 1.250V
  • B. 2.000V
  • C. 8.000V
  • D. 0.125V
View Answer & Discuss (4) JAMB 2004
2967

If a force of 50N stretches a wire from 20m to 20.01m, what is the amount of force required to stretch the same material from 20m to 20.05m?

  • A. 250N
  • B. 200N
  • C. 100N
  • D. 50N
View Answer & Discuss (9) JAMB 2004
2968

A bead traveling on a straight wire is brought to rest at 0.2m by friction. If the mass of the bead is 0.01kg and the coefficient of friction between the bead and the wire is 0.1 determine the work done by the friction

  • A. \( 2 \times 10^{-4}J \)
  • B. \( 2 \times 10^{-3}J \)
  • C. \( 2 \times 10^{1}J \)
  • D. \( 2 \times 10^{2}J \)
View Answer & Discuss (3) JAMB 2003
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2969

A ray of light is incident on an equilateral triangular glass prism of refractive index 3/2, Calculate the angle through which the ray is minimally deviated in the prism

  • A. 30.0\(^{\circ} \)
  • B. 37.2\(^{\circ} \)
  • C. 42.0\(^{\circ} \)
  • D. 48.6\(^{\circ} \)
View Answer & Discuss (14) JAMB 2003
2970
In the calibration of an ammeter using faraday's laws of electrolysis, the ammeter reading is kept constant at 1.2A. If 0.990g of copper is deposited in 40 minutes , the correction to be applied to the ammeter is
  • A. 0.03A
  • B. 0.04A
  • C. 0.05A
  • D. 0.06A
View Answer & Discuss (28) JAMB 2003
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