by Sunday | Nov 12 | Physics JAMB
A. 180° B. 90° C. 60° D. 30° Correct Answer: Option B – 90° Explanation In a purely capacity circuit, voltage lags behind current by 90° or current leads voltage by 90°
by Sunday | Nov 12 | Physics JAMB
A. 8 s B. 4 s C. 16 s D. 10 s Correct Answer: Option B – 4 s Explanation For a body projected at an angle θ to the horizontal, the time of the flight is given by T = (2u sin θ)/g =(2x 40)x sin (30)/10 =(2 x 40) x (0.5)/10 =...
by Sunday | Nov 12 | Physics JAMB
A. (R/r)² B. r/R C. (r/R)² D. R/r Correct Answer: Option D – R/r Explanation In a wheel and axle system of mechanic, the mechanical advantage is given by its ratio of the radius of the wheel R, to the radius of the axle r. that M.A =...
by Sunday | Nov 12 | Physics JAMB
A. 3 cm B. 4 cm C. 1 cm D. 2 cm Correct Answer: Option C – 1 cm Explanation Y = sin π(150πt – πx/4) comparing the above with the standard wave equation: Y = A sin π ((2vt)/λ – (2x)/λ) => the phase difference x/4 = 2x/λ ∴ 1/4 = 2/λ => λ = 8cm ∴...
by Sunday | Nov 12 | Physics JAMB
A. momentum and power B. velocity and distance C. displacement and torque D. acceleration and speed Correct Answer: Option C – displacement and torque
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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