by Sunday | Nov 12 | Physics JAMB
A. change in volume B. differential expanssion C. change in pressure D. change in length Correct Answer: Option C = change in pressure Explanation The thermometric property of a constant volume thermometer is change in pressure with...
by Sunday | Nov 12 | Physics JAMB
A. 8.00 x 10-3 m3 B. 1.25 x 10-4 m3 C. 1.92 x 10-4 m3 D. 4.61 x 10-3 m3 Correct Answer: Option B = 1.25 x 10-4 m3 Explanation R.D = (density of the subs)/density of water 19.2 =(P)/103; ∴P = 19.2 X 103 But Vol. = (Mass)/density = (2.4)/19.2 x 103 = 1.25 x...
by Sunday | Nov 12 | Physics JAMB
A. damp and rough B. damp and smooth C. dry and rough D. dry and smooth Correct Answer: Option C = dry and rough
by Sunday | Nov 12 | Physics JAMB
A. the cube will melt after a period of time B. the cube will float C. the cube will sink in water D. the cube will rest at an equilibrium position in water Correct Answer: Option B – the cube will float Explanation For the uniform cube 10cm volume = 10 x 10 x...
by Sunday | Nov 11 | Physics JAMB
A. 100Ω B. 200Ω C. 300Ω D. 500Ω Correct Answer: Option B = 200Ω Explanation Power of the lamp = 60W; I=P/V I=60/120 = 0.5A R=V/I Rmains = 220/0.5 = 440Ω Rlamp = 120/0.5 = 240Ω ∴ The non-inductive resistance to keep the lamp = (440−240)Ω =...
by Sunday | Nov 11 | Physics JAMB
A. 3 x 10-5 B. 3 x 10-6 C. 5 x 10-5 D. 5 x 10-5 Correct Answer: Option D = 5 x 10-5 Explanation Since the wires are parallel to each other, the forces which they exert on each other are equal and opposite, since they must agree with newton’s law of action and...
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