Unformatted text preview: A 1.9 V dry cell can be tested by connecting it to a low—resistance ammeter. It should be able to supply at least 20 A. What is the internal resistance of the cell in this case. assuming
it is much greater than that of the arnrneter'? -¢I 0.005 0 What is the internal resistance of a 12.0 V car battery whose terminal voltage drops to 7.7 V when the starter draws 34A? -U'I0.12is Q What is the reSistance of the starter? -¥I 0.226 Q Three 21] Q lightbulbs and three 115 Q lightbulbs are connected in series. (a) What is the total resistance of the circuit7 IE9 (is) What is the total resistance if all six are wired in parallel? -~’Is.se Q ...
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- Spring '07