Heating effect of current Definition and 3 Discussions
Joule heating, also known as resistive, resistance, or Ohmic heating, is the process by which the passage of an electric current through a conductor produces heat.
Joule's first law, also known as the Joule–Lenz law, states that the power of heating generated by an electrical conductor is proportional to the product of its resistance and the square of the current:
P
∝
I
2
R
{\displaystyle P\propto I^{2}R}
Joule heating affects the whole electric conductor, unlike the Peltier effect which transfers heat from one electrical junction to another.
Homework Statement
Why is it inefficient to use low voltage when transmitting electricity?
Homework Equations
P∝i2
P=Vi
H=Vit
P=Ri2
E/ti2=V/i
These are all basically the same few formulas, but I wrote down all iterations of them.
Anything from Joule's Law/Joule Heating
The Attempt at a...
I have to configure a power system for a furnace which demands very high current of the order of 50KAmps with low voltage of the order of 100 volts.
Can anyone help me to get insight into how to configure the power system in boarder way.
I am planning to use a transformer with thyristors .