Two identical cells, each of emf E and internal resistance r, are connected with a load resistance R, first in series and then in parallel. Obtain the condition under which the current through R is same in both cases.

Question

TextCells in Series CombinationCells in Parallel CombinationCBSE PYQ

Similar Questions

(i) A cell emf of (E) and internal resistance (r) is connected across a variable load resistance (R). (i) R and (ii) the current (I) in the load. Draw plots showing the variation of terminal voltage V with (i) R and (ii) the current (I) in the load. (ii) Three cells, in which each of emf E but internal resistances 2r, 3r and 6r are connected in parallel across a resistor R. Obtain expressions for (i) current flowing in the circuit, and (ii) the terminal potential difference across the equivalent cell.

CASE_STUDIESRelation Between EMF, Terminal Voltage and Internal ResistanceCells in Parallel Combination

A student is asked to connect four cells, each of emf E and internal resistance r, in series. But she/he connects one cell wrongly in series with the other cells. The equivalent emf and the equivalent internal resistance of the combination will be :