电阻
\[ R=\frac{U}{I}=I^{-1}U=(\frac{P}{U}^{-1})U=\frac{U}{P}U=\frac{U^2}{P} \]
电流\(I\)
\[ I=\frac{U}{R} \\ I=\frac{Q}{t} \]
电压\(U\)
\[ U=IR \]
电池容量 \(Q\)
\[ Q=It \\ t=\frac{Q}{I} \]
功率\(P\)
\[ P=UI \\ I=\frac{P}{U} \\ U=\frac{p}{I} \]
电力计算公式
恰饭,恰饭
\[ R=\frac{U}{I}=I^{-1}U=(\frac{P}{U}^{-1})U=\frac{U}{P}U=\frac{U^2}{P} \]
\[ I=\frac{U}{R} \\ I=\frac{Q}{t} \]
\[ U=IR \]
\[ Q=It \\ t=\frac{Q}{I} \]
\[ P=UI \\ I=\frac{P}{U} \\ U=\frac{p}{I} \]
