Practical Circuits
 

Practical Circuits problem 17


A cell with constant electromotive force (e.m.f.) is connected across a fixed resistor. Over time, the internal resistance of the cell increases. Which change occurs as the internal resistance of the cell increases?


  • a decrease in the charge of each charge carrier


  • a decrease in the potential difference measured across the cell


  • an increase in the energy dissipated per unit time in the fixed resistor


  • an increase in the number of charge carriers leaving the cell per unit time


 

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main author and content editor: Daniel Owoyomi