Power Formula:
Where:
P: Power (W)
W: Work (J)
t: Time (s)
From: | To: |
Definition: This calculator determines the power generated when a certain amount of work is done over a specific time period.
Purpose: It helps students, engineers, and physics enthusiasts understand and calculate the relationship between work, time, and power.
The calculator uses the formula:
Where:
Explanation: Power is calculated by dividing the amount of work done by the time taken to do that work.
Details: Understanding power is crucial in physics, engineering, and mechanical systems to determine energy transfer rates and system efficiency.
Tips: Enter the work done in Joules and the time taken in seconds. All values must be > 0.
Q1: What is the unit of power?
A: The SI unit of power is the Watt (W), which equals one Joule per second.
Q2: How is work different from power?
A: Work is the energy transferred, while power is the rate at which work is done.
Q3: Can I calculate work if I know power and time?
A: Yes, work can be calculated as W = P × t.
Q4: What's a typical power output for humans?
A: An average human can sustain about 100W of power output, with short bursts up to 1000W.
Q5: How does this relate to electrical power?
A: Electrical power follows the same principle, where power (W) = voltage (V) × current (A).