Question

what is electric power? reduce its mathematical formula ​

Answer 1

Answer:

Electric power is a widely used term in physics as you must be aware of. Moreover, it is a very important thing that allows us to see the rate at which electrical energy transfers from an electric circuit.

Explanation:

Electric power can be said to be the rate at which energy gets transported to or from a part of an electric circuit. Energy can be delivered by a battery or a circuit element, for instance, a resistor which releases energy as heat. For any element of the circuit, the power equals to the difference in voltage across the element which multiplies by the current. If we look at it from the Ohm’s Law, we see that V = IR here, thus there are other forms of the electric power formula for resistors. We measure power in units of Watts. Moreover, it is important to know that a Watt = Joule per second. (1 W = 1 J/s). Therefore:

P = VI

Over here,

P refers to the electric power

V is the voltage difference

I is the electric current

Then we have the formula for resistors which means, it combines Ohm’s law with Joules Law. Therefore, we have:

P = I2 R = V2R

Over here:

P is the electric power (W)

V refers to the difference in voltage (V= J/C)

I is the electric current (A = C/s)

R refers to the resistance (Ω = V/A)