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ibanezmatt13/gist:7335553

Created November 6, 2013 12:49
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gistfile1.txt
A cell in a hearing-aid supplies a current of 2.5mA through a resistance of 400 ohms. When the wearer turns up the volume control, the resistance is changed to 100 ohms and the current increases to 6.0mA.
1. What is the E.M.F and the internal resistance of the cell?
2. What is the maximum current the cell could supply?
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