The graph below depicts the voltage across the cell (or equally across the variable resistor) as the variable resistance is increased. Determine a) the emf of the cell b) the current in the external circuit when the variable resistor is reduced to zero. c) the internal resistance of the cell
The graph below depicts the voltage across the cell (or equally across the variable resistor) as the variable resistance is increased. Determine a) the emf of the cell b) the current in the external circuit when the variable resistor is reduced to zero. c) the internal resistance of the cell
Chapter10: Direct-current Circuits
Section: Chapter Questions
Problem 74AP: Consider a circuit that consists of a real battery with an emf and an internal resistance of r...
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The graph below depicts the voltage across the cell (or equally across the variable resistor) as the variable resistance is increased.
Determine
a) the emf of the cell
b) the current in the external circuit when the variable resistor is reduced to zero.
c) the internal resistance of the cell
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