n equal cell having emf E and internal resistance r, are connected in circuit of a resistance R. Same current flows in circuit either they connected in series or parallel, if:

n-identical cells each of emf E and internal resistance r are connected in series. Find the expression for current in the circuit given below

n cells of e.m.f E and internal resistance r are connected in series with an external resistance R . the current will increase n times that of a single cell, if

n-identical cells each of emf E and internal resistance r are connected in series. Find the expression for current in the circuit given below.

An external resistance R is connected to a cell of internal resistance r. The current in the circuit is maximum when

5When a cell of emf E and internal resistance r, is connected to the ends of a resistance R, then current through resistance is I. If the same cell is connected to the ends of a resistance R/2 then the current would be-

An external resistance R is connected to a cell of internal resistance r. The current in the circuit is maximum when :

n cells, each having emf. E and internal resistance r are connected in parallel. What is the net internal resistance of the combination?

Four cells, each of emf E and internal resistance r, are connected in series across an external resistance reverse. Then, the current in the external circuit is