Learn the Power Formula We’ve seen the formula for determining the power in an electric circuit: by multiplying the voltage in “volts” by the current in “amps” we arrive at an answer in “watts.” Let’s apply this to a circuit example: How to Use Ohm’s Law to Determine Current In the above circuit, we know we have a battery voltage of 18 volts and a lamp resistance of 3 Ω. Using Ohm’s Law to determine current, we get: Now that we know the current, we can take that value ... Power is always dependent on work done, so if a person does work at different rates his power also differs at different times. This is where the concept of average- power comes into the picture. In this session, let us learn about power , average power , unit and formula of power . The capacity to do work is termed Energy. The Energy expended to do work in unit time is termed as Power. It is represented as P. Power Formula is articulated as, Power is the amount of energy transferred or converted per unit time. Learn how to calculate power in different systems and contexts, such as mechanics, electricity, and thermodynamics, using various formulas and examples.
