Eels are able to generate current with biolog | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The given problem represents a mixed grouping of cells.Let $n$ be the number of cells in each row and $m$ be the number of rows.Given: $n = 5000$,

Vedclass · Accepted Answer

$1.5$

Vedclass · Answer

(A) The given problem represents a mixed grouping of cells.Let $n$ be the number of cells in each row and $m$ be the number of rows.Given: $n = 5000$,$m = 100$,$E = 0.15\, V$,$r = 0.25\,\Omega$,and external resistance $R = 500\,\Omega$.The total emf of the arrangement is $E_{eq} = nE = 5000 	imes 0.15 = 750\, V$.The total internal resistance of the arrangement is $r_{eq} = \frac{nr}{m} = \frac{5000 	imes 0.25}{100} = 50 	imes 0.25 = 12.5\,\Omega$.The total current $i$ in the circuit is given by $i = \frac{E_{eq}}{R + r_{eq}}$.Substituting the values: $i = \frac{750}{500 + 12.5} = \frac{750}{512.5} \approx 1.463\, A$.Rounding to the nearest option,the current is approximately $1.5\, A$.

Similar Questions

For a cell with non-zero (finite) internal resistance,write the relation between the terminal voltage $(V)$ and the electromotive force $(E)$ of the cell.

Electromotive force is the force,which is able to maintain a constant

Two non-ideal identical batteries are connected in parallel. Consider the following statements:
$(i)$ The equivalent e.m.f. is smaller than either of the two e.m.f.s.
$(ii)$ The equivalent internal resistance is smaller than either of the two internal resistances.

There are a large number of cells available,each marked $(6 \,V, 0.5 \,\Omega)$,to be used to supply current to a device of resistance $0.75 \,\Omega$,requiring $24 \,A$ current. How should the cells be arranged so that power is transmitted to the load using the minimum number of cells?

Two cells with the same e.m.f. $E$ and different internal resistances $r_1$ and $r_2$ are connected in series to an external resistance $R$. The value of $R$ so that the potential difference across the first cell is zero is

Vedclass Test Series

Exam Paper Generator

Online Exam Module