define and write the mathematical expression of the joules law of heating
Answers
Answer:
Joule's laws are two: first about heat produced by an electric current, and second about how the energy of a gas relates to pressure, volume and temperature.
Joule's first law shows the relation between heat generated by an electric current flowing through a conductor. It is named after James Prescott Joule and shown as:
{\displaystyle Q=I^{2}\cdot R\cdot t} {\displaystyle Q=I^{2}\cdot R\cdot t}
Where Q is the amount of heat, I is the electric current flowing through a conductor, R is the amount of electric resistance present in the conductor, and t is the amount of time that this happens for.
Answer:
Explanation:
Hii friend,
Joyless law of hearing is about on hearing.
It is expressed as
H= I²Rt (or) V²/R×t
where (I=V/R).
In this, H= heat of the substance
I= current through the substance
R= resistance
T= temperature.
hope this helps you a little!!!