by Sunday | Jan 9 | Physics WAEC
A. The electric potential energy of a positively charged particle increases when it moves to a point of higher potential B. The electric potential energy of a negatively charged particle increases when it moves to a point of lower potential C. The electric potential...
by Sunday | Jan 9 | Physics WAEC
A. 2.5Ω B. 5.0Ω C. 8.0Ω D. 10.0Ω Correct Answer: Option B = 5.0Ω Explanation r = resistance of the galvanometer l = current through galvanometer = 20mA or 0.02A V1 = p.d across the galvanometer = I X r = 0.02 X r : V1 = 0.02r V2 = p.d across the multiplier = 8 –...
by Sunday | Jan 9 | Physics WAEC
A. photoelectric effect B. heisenberg’s uncertainty principle C. compton effect D. wave-particles paradox Correct Answer: Option A – photoelectric effect Explanation The photoelectric effect is the emission of electrons when electromagnetic radiation, such...
by Sunday | Jan 9 | Physics WAEC
A. ferrite substance B. paramagnetic substance C. ferromagnetic substance D. diamagnetic substance Correct Answer: Option A – ferrite substance Explanation Ferrite magnets are non-conductive aferromagnetic ceramic compounds derived from iron oxides such as...
by Sunday | Jan 9 | Physics WAEC
A. maximum motor force if the current reverses its direction B. no motor force of it is parallel to the field C. no motor force if it is perpendicular to the field D. a motor force with constant direction if either the current or the magnetic field is reversed Correct...
by Sunday | Jan 9 | Physics WAEC
A. 3.0 x 10−5s B. 1.0 x 10−4 s C. 1.0 x 104s D. 3.0 x 104s Correct Answer: Option B = 1.0 x 10−4 s Explanation The relation between period and frequency is that one is the inverse of the other. By definition: Frequency = 1/period. or period = 1/frequency → 1/ 10,000...
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