Power units: Definition of the watt in joules per second One watt (W) is equal to how many joules per second (J/s)? Choose the correct equivalence.
Mechanical Engineering
Engineering Mechanics
Difficulty: Easy
Choose an option
Answer
Correct Answer: 1 joule/s
Explanation
ConceptPower is the rate of doing work or energy transfer per unit time.
Definition1 watt (W) = 1 joule per second (J/s): P = dW/dt.
Final Answer1 joule/s