Current Formula 3 (Power and Resistance, Ohmic Loss, Resistive Heating) We know that, Now substituting Ohm’s law into the above equation we get, Thus, the current is the square root of the ratio of power and resistance. Mathematically, the formula for this is equal to: Example As shown...
Planck’s radiation law, a mathematical relationship formulated in 1900 by German physicist Max Planck to explain the spectral-energy distribution of radiation emitted by a blackbody (a hypothetical body that absorbs all radiant energy falling upon it).
measured in units of energy or work—e.g.,microjoules (10-6joule) per second per square centimetre—or in units of power, as microwatts (10-6watt) per square centimetre. Unlikeloudness, sound intensity is objective and can be measured by auditory equipment independent of an observer’s ...