A parallel plate capacitor of capacitance 600μF has a potential difference of 200V between its plates. Calculate the charge on either plate of the capacitor.
A. 1.2C B. 3.3C C. 3330.0C D. 12.0000.0C Correct Answer: Option A A. 1.2C Explanation Q = CV = 600 x 10-6 x 200 = 1.2CAn electric lamp is rated 240V, 40W. What is the cost of running the lamp for 72 hours if the electricity authority charges N2.50 per kWh?
A. N7.20 B. N18.00 C. 180.00 D. N720.00 Correct Answer: Option A A. N7.20 Explanation Cost = (Pt/1000) x cost per kWh = (40×72/1000)×2.50=N7.20A chemical cell of internal resistance 1Ω supplies electric current to an external resistor of resistance 3Ω. Calculate the efficiency of the cell.
A. 75% B. 50% C. 33% D. 25% Correct Answer: Option A A. 75% Explanation R = r1+ R = 1+3 = 4Ω ¾×100 = 75%A ray of light is incident normally on a plan mirror. If the incident ray is kept fixed while the mirror is rotated through an angle of 30°, determine the initial and final angles of reflection respectively
A. 0° and 60° B. 90° and 30° C. 0° and 30° D. 90° and 60° Correct Answer: Option D D. 90° and 60°Products
-
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
-
Co-Ownership Structures and Land Acquisition Methods in Nigeria
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
-
Rights in Community Land and Fundamental Land Concepts in Nigeria
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
-
Customary Land Control and the Origins of Nigeria's Land Use Act
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.
-
Land Ownership Principles and Transaction Laws in Nigeria
Original price was: ₦1,000.00.₦300.00Current price is: ₦300.00.