H=12RT को क्या
कहते है।
Answers
Answer:
Statement:-
There are mainly three points by which we can explain Joule's Law:-
Heat in an electric circuit is directly proportional to the square of Current \tt (I^2)(I
2
) in the circuit.
Heat in an electric circuit is directly proportional to the Resistance (R) in the circuit.
Heat in an electric current is directly proportional to the Time (T) at which the current is passed through the circuit.
Derivation:-
\begin{gathered}\\ \tt\mapsto E = PT.\end{gathered}
↦E=PT.
Where,
E = Energy i.e. Heat.
P = Power Generate by flowing by current.
T = Time.
Also we know that,
\begin{gathered}\\ \tt\mapsto P = VI.\end{gathered}
↦P=VI.
Where,
V = Potential Difference.
I = Current.
Also,
\begin{gathered}\\ \tt\mapsto V = IR.\end{gathered}
↦V=IR.
\begin{gathered} \\ \tt\mapsto P = VI.\end{gathered}
↦P=VI.
\begin{gathered}\\ \tt\mapsto P = I^2R.\end{gathered}
↦P=I
2
R.
Therefore,
\begin{gathered}\\ \large\red{\mapsto\boxed{\blue{\bf H = PT = I^2RT.}}}\end{gathered}
↦
H=PT=I
2
RT.