Answered: The electromotive force of a cell… | bartleby

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The electromotive force of a cell battery is represented by E. When it is connected across an external resistor, the terminal voltage is found to be V. Let R be the resistance of the external resistor, what is the internal resistance of the cell battery?

a. (E - V)/r

b. 2V(E - V)/r

c. 2r(E - V)/E

d. ((E - V)/V)/r

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