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What is the unit for the equation H equals I2Rt?

The equation is referring to: * H = Heat in Watts * I = Current in Amperes, (therefore I2 = Current squared) * R = Resistance in Ohms * T= Time in Seconds or .....The amount of heat in a conductor would be: Current (Squared) x Resistance x Time


How do you derive joule's law?

Joule's law, which states the relationship between electrical power, current, and resistance, is derived from Ohm's law, P = IV, and the formula for electrical power, P = I^2R. By substituting I = V/R from Ohm's law into the power formula, you can derive Joule's law as P = V^2/R.


How do you derive the formula for cetripital acceleration?

That is done via calculus. Specifically, take the movement over a small distance, calculate the change in velocity divided by the time, and figure out what happens if the time interval gets smaller and smaller - as they say in calculus, "get the limit of the acceleration as the time tends towards zero".


An electric DC circuit is attached to a 12-volt battery and has a 3-ohm resistor in it find the current flowing through the circuit?

Use the equation, V= IR from Ohm's Law V is the voltage, I is the current, and R is the resistance in ohms So then, solve the equation for I (the current) and you get I=V/R. Then just plug in the values... I= 12/3, which equals 4 A. (For current, it is measured in amperes, or just "A" as the unit.)


What is the equation of orbital velocity?

The equation for orbital velocity is (v = \sqrt{\frac{GM}{r}}), where (v) is the orbital velocity, (G) is the gravitational constant, (M) is the mass of the central body, and (r) is the distance from the center of mass.