In physics, power is defined as work done per unit time, or P = W/t, where P is power in watts (W) or joules per second (J/s), work W is in newton-meters (Nm) or Joules (J), and time t is in seconds (s). In the power sector, power is ...
This formula is to be used for calculating power when voltage V and resistance R are known to us. It is clear from equation (3) that power is inversely proportional to the resistance. Thus, the resistance of high power devices is smaller than the low power ones. For example, the resistan...
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Learn about electric power and understand the common units of electricity. Explore the electrical power formula and see examples of both voltage...
Convert the work from kilojoules to joules by multiplying by 1000 before applying the formula. How does time affect power?Power is inversely proportional to time for a constant amount of work; the less time it takes to do work, the greater the power. Is it possible for a machine to have...
Electric Energy and Power: Know electrical energy formula here. Get the difference between power and energy in electricity and more.
In other words, power is the rate of doing work. It's also the rate of transfer of heat and electrical energy. In the study of electricity, the power formula is: P=VI where V is the voltage in a circuit and I is the current flowing through that circuit. ...
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