Solve the Formula for the Specified Variable $I = \frac { n E } { n r + R } ;$

question 19

Multiple Choice

Solve the formula for the specified variable.
- $I = \frac { n E } { n r + R } ;$ for $n$

• A) \(n = \frac { I R } { E - I r }\)
• B) \(n = \operatorname { IR } ( \operatorname { Ir } - \mathrm { E } )\)
• C) \(n = \frac { I R } { I r + E }\)
• D) \(n = \frac { - R } { I r - E }\)

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