Kilowatt-hour is a unit of:

(A) Power
(B) Electric current
(C) Energy
(D) Time

Answer: (C) Energy

Q. Ampere is a unit of:
(A) Power
(B) Electric current
(C) Energy
(D) Time

Answer: (B) Electric current

Q. Candela is a unit of:
(A) Energy
(B) Power
(C) Amount of substance
(D) Luminous intensity

Answer: (D) Luminous intensity