by Sunday | Nov 4 | Physics JAMB
A. By using high resistance wire B. By using insulated soft iron wires C. By using low resistance wires D. Bu using turns of wires Correct Answer: Option A – By using insulated soft iron wires Explanation Eddy currents are produced by the varying flux cathode,...
by Sunday | Nov 4 | Physics JAMB
A. 0.04m B. 0.12m C. 0.01m D. 0.08m Correct Answer: Option D – 0.08m Explanation From Hoke’s Law, F = ke, K = Constant of Force For the first case, Force = mg, = 0.8 × 10 = 8N ∴ 8 = k × 0.04 k = 8/0.04 = 200Nm−¹ Since K is constant For the second case, F =...
by Sunday | Nov 4 | Physics JAMB
A. 0.1 m B. 0.2 m C. 2.0 m D. 2.5 m Correct Answer: Option B – 0.2 m Explanation Power of a lens = 1/f f = focal length f = 1/p = 1/5 = 0.2m
by Sunday | Nov 4 | Physics JAMB
A. Tension B. Weight C. Impulse D. Mass Correct Answer: Option D – Mass Explanation Scalar quantity is a quantity with only magnitude, it has no direction. Tension, weight, impulse are vector quantities because they have direction. Mass is the only scalar...
by Sunday | Nov 4 | Physics JAMB
A. 2.20 × 10³m B. 5.0 × 10²m C. 5.0 × 10^5m D. 11.8 × 1011¹¹m Correct Answer: Option B – 5.0 × 10²m Explanation V = f/λ λ = v/f = 3×10^8/600×10³ = 500m = 5 × 10²m N.B 600KHz Frequency = 600 ×...
by Sunday | Nov 4 | Physics JAMB
A. 100w B. 200w C. 400w D. 500w Correct Answer: Option D – 500w Explanation Power is the time rate of doing work i.e power = energy/time Since energy = mgH ∴ power = mgH/t = 50×10×5/t =...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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