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Sunday, 6 August 2017

What is power

Define power


Power 
     
 Power is the rate of doing work. Inotherwords power is the work done per unit time.

The unit of power is joules/sec or watts.


                   Work done
 Power        ___________
                  
                      Time

Power P = VI watts

Where 
     V = Voltage
      I = Current


Symbol = P

Si Unit = Watts 

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