36. What is the unit of capacitance?
a) Farad
b) Henry
c) Ohm
d) Volt
Answer: a) Farad
37. What is the formula for electric current?
a) I = V/R
b) I = P/t
c) I = Q/t
d) I = 1/2mv²
Answer: c) I = Q/t
38. What is the process by which a gas turns directly into a solid?
a) Deposition
b) Sublimation
c) Evaporation
d) Condensation
Answer: a) Deposition
39. What is the formula for work?
a) W = Fd
b) W = QV
c) W = P/t
d) W = 1/2mv²
Answer: a) W = Fd
40. Which of the following is an example of a renewable energy source?
a) Coal
b) Oil
c) Solar energy
d) Natural gas
Answer: c) Solar energy
