For example, the external voltage is 8 volts, 2 ohm resistor, the back EMF is 6 volts, the current is (8 - 6) /2 = 1 (an), instead of 4. So the power is 8 x 1 = 8 (w). In other words Joule, is the formula of resistance heating, the heating power is multiplied by the...
2 = 1 (an), instead of 4. So the power is 8 x 1 = 8 (w). In other words Joule, is the formula of resistance heating, the heating power is multiplied by the square of the current resistance ", which is always right. Also take the above example, the power of motor heating is...
Learn about the heat of fusion. Understand what is formula for the heat of fusion and what is the heat of fusion equation. Discover the concept of...
Forexample,theexternalvoltageis8volts,2ohmresistor, thebackEMFis6volts,thecurrentis(8-6)/2=1(an), insteadof4.Sothepoweris8x1=8(w). InotherwordsJoule,istheformulaofresistanceheating,the heatingpowerismultipliedbythesquareofthecurrent resistance",whichisalwaysright. ...
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...
For example, a moving car, a moving cycle and a football in motion are some examples of kinetic energy. Now the question arises what happens to the kinetic energy when an object stops? Well, kinetic energy purely depends on the motion of an object. When an object stops, its kinetic ...
A) joule B) kw-hr C) btu D) kwWhat is the formula for potential energy?A coil has a resistance of 30 ohms and an inductance of 0.5 H, if the current flowing through the coil is 4 amps, what will be the value of the supply voltage if its frequency is 50 Hz?
What are the units for Q rate of heat transfer?Heat transfer rate refers to the amount of heat, Q being transferred per unit time, t. The SI unit of heat is the joule, while the SI unit of time is the second. Thus, heat transfer rate is measured as joule per second (J/s)....
1 watt =1joule1second Actually, watt is a small unit, therefore, a bigger unit of electric power called kilowatt is used for commercial purposes. it is obvious that : 1 kilowatt = 1000 watts or 1 kW = 1000 W It should be noted that the symbol for watt is W and that for kilowatt ...
amalgamated effect of viscous dissipation and joule heating on the electro-osmotic flow of generalized Maxwell nanofluid along with heat transfer in a channel... S Murtaza,M Iftekhar,F Ali,... - 《IEEE Access》 被引量: 0发表: 2020年 ...