If I - nE-R - nr- then n is equal to

The correct option is B IR/E Ir I = nE R+nr IR + Inr = nE IR = nE Inr IR = n(E Ir) n = IR (E Ir) ...

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Byju's Answer

Standard XII

Mathematics

Definition of Limit

If I = nE/R...

Question

If $I = \frac{n E}{R + n r}$ , then $n$ is equal to

\frac{I R}{E^{2} - I r}

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\frac{I R}{E - I r}

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\frac{I R}{E^{2} + I r}

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\frac{I R}{E + I r}

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Solution

The correct option is B $\frac{I R}{E - I r}$
$I = \frac{n E}{R + n r} I R + I n r = n E I R = n E - I n r I R = n (E - I r) n = \frac{I R}{(E - I r)}$

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If I=nER+nr, then n is equal to

The correct option is B IRE−IrI=nER+nrIR+Inr=nEIR=nE−InrIR=n(E−Ir)n=IR(E−Ir)

If $I = \frac{n E}{R + n r}$ , then $n$ is equal to

The correct option is B $\frac{I R}{E - I r}$
$I = \frac{n E}{R + n r} I R + I n r = n E I R = n E - I n r I R = n (E - I r) n = \frac{I R}{(E - I r)}$