jlzk SG Write down in symbol form,the 3 equations (known as Joule's laws) relating the electrical energy E,Current I,Voltage V,time t,and the electrical resistance R of a heater coil. (a)E= (b)E= (c)E=
fudgester SG Just remember.... Energy = Power x time for any system. For an electrical system.... Power = Voltage x current. Remember that Voltage = current x resistance. From this you can quickly work out all the equations that you need for electrical energy.
jlzk SG Ya sincerely thanks if not tommorow Friday 13 Physics lesson i will drop dead in class..thanks alot
