2.2.6

Power

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Power

Power (P) is the rate of energy transfer to a component.

Illustrative background for PowerIllustrative background for Power ?? "content

Power

  • The power of a component is equal to the current through the component multiplied by the potential difference across the component.
  • P = I x V.
  • We know V = IR, so power can also be calculated by:
    • P = I2R
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Total energy transfer

  • The total energy transferred to a component is equal to the power multiplied by the time a current flows for.
  • E = P x t.

Jump to other topics

1Energy

2Electricity

3Particle Model of Matter

4Atoms & Radiation

5Forces

5.1Basics of Motion

5.2Forces

5.3Effects of Forces

5.4Pressure

6Waves

7Magnetism

8Astrophysics

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