To get the maximum current from a parallel combination of n identical cells each of internal resistance r in an external resistance R, when

Question

To get the maximum current from a parallel combination of n identical cells each of internal resistance r in an external resistance R, when (A) R << r (B) R >> r (C) R = r (D) None of these

Tardigrade Admin · Accepted Answer

we know that internal resistance when cell are parallel

r_{e q} = \frac{r}{n}

I \propto \frac{1}{r}

Cells are joined in parallel when internal resistance is higher then a external resistance.

(R << r)

i = \frac{E}{R + \frac{r}{n}}

Q. To get the maximum current from a parallel combination of n identical cells each of internal resistance r in an external resistance R, when

R << r

R >> r

R = r

None of these

we know that internal resistance when cell are parallel req​=nr​ I∝r1​ Cells are joined in parallel when internal resistance is higher then a external resistance. (R<<r) i=R+nr​E​

Q. To get the maximum current from a parallel combination of $n$ identical cells each of internal resistance $r$ in an external resistance $R$ , when

we know that internal resistance when cell are parallel $r_{e q} = \frac{r}{n}$
$I \propto \frac{1}{r}$
Cells are joined in parallel when internal resistance is higher then a external resistance. $(R << r)$
$i = \frac{E}{R + \frac{r}{n}}$