Whakaoti mō I
\left\{\begin{matrix}I=\frac{p}{8v}\text{, }&v\neq 0\\I\in \mathrm{R}\text{, }&p=0\text{ and }v=0\end{matrix}\right.
Whakaoti mō p
p=8Iv
Tohaina
Kua tāruatia ki te papatopenga
240vI=30p
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
\frac{240vI}{240v}=\frac{30p}{240v}
Whakawehea ngā taha e rua ki te 240v.
I=\frac{30p}{240v}
Mā te whakawehe ki te 240v ka wetekia te whakareanga ki te 240v.
I=\frac{p}{8v}
Whakawehe 30p ki te 240v.
30p=240Iv
He hanga arowhānui tō te whārite.
\frac{30p}{30}=\frac{240Iv}{30}
Whakawehea ngā taha e rua ki te 30.
p=\frac{240Iv}{30}
Mā te whakawehe ki te 30 ka wetekia te whakareanga ki te 30.
p=8Iv
Whakawehe 240vI ki te 30.
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