by Sunday | Aug 29 | Physics WAEC
A. e.m.f. is induced in a circuit whenever there is a change in the magnetic flux linked with the circuit. B. the induced current in a conductor is in such a direction as to oppose the change producing it C. the magnitude of the induced e.m.f. in a circuit is...
by Sunday | Aug 29 | Physics WAEC
A. 2.0 x 10³ Ω B. 2.0 x 10² Ω C. 2.0 x 10−¹ Ω D. 2.0 x 10−² Ω E. 2.0 x 10−³ Ω Correct Answer: Option E – 2.0 x 10−³ Ω
by Sunday | Aug 29 | Physics WAEC
A. Commutator B. Field magnets C. Slip rings D. Armature E. Carbon brushes Correct Answer: Option C – Slip rings
by Sunday | Aug 29 | Physics WAEC
A. heat energy B. light energy C. chemical energy D. electrical energy E. mechanical energy Correct Answer: Option D – electrical energy
by Sunday | Aug 29 | Physics WAEC
A. 2.38 x 10^7W B. 7.92 x 10^6W C. 3.96 x 10^6W D. 2.64 x 10^6W E. 7.92 x 10^4W Correct Answer: Option B – 7.92 x 10^6W