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3. (II) What is the internal resistance of a 12.0-V car
Chapter 19, Problem 3(choose chapter or problem)
QUESTION:
3. (II) What is the internal resistance of a 12.0-V car battery whose terminal voltage drops to 8.4 V when the starter draws 75 A? What is the resistance of the starter?
Questions & Answers
QUESTION:
3. (II) What is the internal resistance of a 12.0-V car battery whose terminal voltage drops to 8.4 V when the starter draws 75 A? What is the resistance of the starter?
ANSWER:Step 1 of 2
For the circuit diagram, see figure (19-2). The internal resistance can be found from the equation (19-1):
Substitute the givens