by Sunday | Nov 1 | Physics JAMB
A. Heat dissipation B. Production of eddy currents C. Excessive current discharge D. Excessive voltage discharge Correct Answer: Option A – Heat dissipation Explanation The primary reason that power is transmitted at high voltages is to increase efficiency. As...
by Sunday | Nov 1 | Physics JAMB
A. Pair of calipers B. Meter rule C. Micrometer screw gauge D. Tape rule Correct Answer: Option C – Micrometer screw gauge
by Sunday | Nov 1 | Physics JAMB
A. 25.2N B. 17.4N C. 12.6N D. 9.0N Correct Answer: Option B – 17.4N Explanation Weight of water displaced = upthrust = 30 – 21 = 9N Mass of water displaced = 9/10 = 0.9kg Volume of object = 9 × 10^−4m³ = (9 × 10^−4) (1.4 ×10³) = 1.26kg = 12N 30 –...
by Sunday | Nov 1 | Physics JAMB
A. 20.0kgms−¹ B. 10.0kgms−¹ C. 5.0kgms−¹ D. 2.5kgms−¹ Correct Answer: Option B – 10.0kgms−¹ Explanation Impulse = Change in momentum m (v – u) 5 (2.0) = 5 x 2 = 10.0kgm−¹ =...
by Sunday | Nov 1 | Physics JAMB
A. Molecules are given energy during the heating B. Friction between oil layers is reduced C. Oil molecules force each other out D. Adhesion between the oil molecules and those of the bottle is increased Correct Answer: Option B – Friction between oil layers is...
by Sunday | Nov 1 | Physics JAMB
A. ML−¹T−² B. MLT−² C. ML²T³ D. ML−³ Correct Answer: Option A – ML−¹T−² Explanation Pressure = Force/Area ML−¹T−²
by Sunday | Nov 1 | Physics JAMB
A. P/V B. (½)V C. P/V D. PV² Correct Answer: Option A – PV Explanation P = F × S1 P = F x V F = P/V
by Sunday | Nov 1 | Physics JAMB
A. Capillary B. Surface C. Viscosity D. Cohesion Correct Answer: Option C – Viscosity Explanation Viscosity, resistance of a fluid (liquid or gas) to a change in shape, or movement of neighboring portions relative to one another. Viscosity denotes opposition to...
by Sunday | Nov 1 | Physics JAMB
A. Conduction B. Convection C. Expansion D. Radiation Correct Answer: Option D – Radiation Explanation Conduction: the flow of internal energy from a region of higher temperature to lower temperature Convection: heat transfer due to bulk movement of molecules...
by Sunday | Nov 1 | Physics JAMB
A. 60N and 60° B. 60N and 30° C. 20√3 N and 60° D. 20√3N and 30° Correct Answer: Option A – 60N and 60° Explanation Resolve vertically, 40cosθ = 20, θ = 60° Resolve horizontally, f = 40sinθ = 40sin60° = 40(3/√2) = 20√3...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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