Question

2. Which of the following statements are true?

a) Power is proportional to voltage only
b) Power is proportional to current only
c) Power is neither proportional to voltage nor to the current
d) Power is proportional to both the voltage and current.

Answer 1

Answer:

D) Power is proportional to both the voltage and current.

Answer 2

Power is proportional to both the voltage and current. (Option D)

• The definition of power is "The quantity of energy transported or transformed per unit time."
• Mathematically, Power = Voltage * Current, which suggests that power is directly proportional to voltage as well as current.
• The S.I unit of power is Watt(W), named after James Watt.
• Power = Voltage(V) × Current (I)