A. close-circuit television camera B. burglar alarm C. solar cells D. periscope Correct Answer: Option D D. periscope
A. number of electrons is equal to the number of protons B. number of electrons is equal to the number…
A. mechanical energy B. electrical energy C. chemical energy D. thermal energy Correct Answer: Option B B. electrical energy
A. a magnetic field is a region in which a magnetic force will be detected B. a magnetic line of…
A. 3.2 x 10‾²J B. 1.6 x 10‾²J C. 8.0 x 10^-4J D. 4.0 x 10^-4J Correct Answer: Option B…
A. farad B. ampere C. coulomb D. volt Correct Answer: Option C C. coulomb
A. 14.4 naira B. 12.5 naira C. 7.2 naira D. 2.0 naira Correct Answer: Option C C. 7.2 naira Explanation…
A. 36.0Ω B. 15.0Ω C. 9.0Ω D. 4.0Ω Correct Answer: Option D D. 4.0Ω Explanation R = v/I=12/3=4Ω
A. control of local action B. depolarisation of the cell C. regulating current flow in the cell D. reduction of…
A. evenly distributed over a surface of any shape B. concentrate on the inner surface of the conductor C. concentrate…