How must a large number of galvanie cells, each having the same emf `G` and tho same internal resistance r, be connected so that in an external circuit whose resistance is `R` the power out put is maximal ?

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

A battery of emf E and internal resistance 'r' is connected to an external resistance 'R', the condition for maximum power transfer is

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

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

What maximum power can be obtained from a battery of emf epsilon and internal resistance r connected with an external resistance R ?

Thousand cells of same emf E and same internal resistance r are connected is series in same order without an external resistance . The potential drop across 399 cells is found to be .

Thousand cells of same emf E and same internal resistance r are connected is series in same order without an external resistance . The potential drop across 399 cells is found to be .

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

A source of electric current with an emf in_o and an Internal resistance r is connected to an external circuit with a resistance R. What must be the relationship between rand R for the power output in the external circuit to be maximal? What is the efficiency of the current source in this case, provided Lhat the power output in the external circuit is assumed to be the useful out put?