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Slide 30

The rate at which work is done or energy is transferred is called as power.

P = F . v = Fvcos

Power = work/time = Energy/time =P.E/time = K.E/time

= (mgh)/t = (1/2mv2)/t

Power of motor

Power of heart

Power of lungs

Electrical power

Optical power

Power of wave

9/3/2015

30

RGUIIIT BASAR

Slide 31

Thank you

Rajaiah.k

By

- Introduction
- Definition
- Average and instantaneous power
- Units of power
- Alternative formulae for power
- Special cases
- Quiz
- Power of motor
- Power of heart
- Heart problem
- Power of lungs
- Work in terms of power
- Power
- Electrical power
- Average electrical power for sinusoidal voltages
- Average electrical power for sinusoidal voltages
- Average electrical power for AC
- Power in optics
- Power of wave
- Summary

- Ch 9 Nuclear Radiation
- Radioactivity and Nuclear Reactions
- Thermal Energy
- Static and Kinetic Friction
- Buoyancy
- Mechanics Lecture
- Heat-Energy on the Move

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