Topic: Internal resistance, emf, cells in series and parallel· Current Electricity
A battery consists of a variable number 'n' of identical cells (having internal resistance 'r' each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct…
A battery consists of a variable number 'n' of identical cells (having internal resistance 'r' each) which are connected in series. The terminals of the battery are short-circuited and the current I is measured. Which of the graphs shows the correct relationship between I and n ?
1. (graph: I constant, horizontal line vs n)
2. (graph: I rising with decreasing slope, concave curve vs n)
3. (graph: I linear increasing vs n)
4. (graph: I rising with increasing slope, convex curve vs n)