Solve the formula for the indicated variable.
-$I = \frac { n E } { n r + R ^ { \prime } }$, for $n$
A) $n = \frac { R } { E - I r }$
B) $n = \frac { I R } { I r + E }$
C) $n = \frac { I R } { E - I r }$
D) $\mathrm { n } = \mathrm { IR } ( \mathrm { Ir } - \mathrm { E } )$

Question

Quizplus · Accepted Answer

To solve for $n$, we start with the given equation $I = \frac { n E } { n r + R ^ { \prime } }$ and rearrange it to isolate $n$. Multiplying both sides by $n r + R ^ { \prime }$ gives $I (n r + R ^ { \prime }) = n E$. Expanding and rearranging to solve for $n$ yields $n = \frac { I R ^ { \prime } } { E - I r }$, which matches choice C when $R ^ { \prime }$ is considered as $R$.

Solve the Formula for the Indicated Variable I=nEnr+R′I = \frac { n E } { n r + R ^ { \prime } }I=nr+R′nE​

Solve the Formula for the Indicated Variable $I = \frac { n E } { n r + R ^ { \prime } }$