Question

all formulas of chapter electricity class 10 and the derivation

Answer 1

$\begin{cases}\sf\star \dfrac{V}{I}=R \\ \\ \sf\star I=\dfrac{Q}{t} \\ \\ \sf\star V=\dfrac{W}{Q} \\ \\ \sf\star R=\rho\dfrac{L}{A} \\ \\ \sf\star R=R_1+R_2\dots (Series\:connection)\\ \\ \sf\star \dfrac{1}{R}=\dfrac{1}{R_1}+\dfrac{1}{R_2}\dots(Parallel \:Connection)\\ \\ \sf\star H=I^Rt \\ \\ \sf\star P=VI=\dfrac{V^2}{R}=I^2R\end{cases}$