College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![1. What effect will the internal resistance of a rechargeable battery have on the energy being used to recharge
the battery?
2. A battery with an internal resistance of r and an emf of 10 V is connected to a load resistor R=r. As the
battery ages, the internal resistance triples. How much is the current through the load resistor reduced?
3. Show that the power dissipated by the load resistor is maximum when the resistance of the load resistor is
equal to the internal resistance of the battery.
4. A voltage occurs across an open switch. What is the power dissipated by the open switch?
5. The severity of a shock depends on the magnitude of the current through your body. Would you prefer to be
in series or in parallel with a resistance, such as the heating element of a toaster, if you were shocked by it?
Explain.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fef765d8f-2682-4d26-8660-19b9a04ddd52%2F438729a6-43df-41dc-b0d5-3fcbf5d9b24c%2Foq3hzze_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. What effect will the internal resistance of a rechargeable battery have on the energy being used to recharge
the battery?
2. A battery with an internal resistance of r and an emf of 10 V is connected to a load resistor R=r. As the
battery ages, the internal resistance triples. How much is the current through the load resistor reduced?
3. Show that the power dissipated by the load resistor is maximum when the resistance of the load resistor is
equal to the internal resistance of the battery.
4. A voltage occurs across an open switch. What is the power dissipated by the open switch?
5. The severity of a shock depends on the magnitude of the current through your body. Would you prefer to be
in series or in parallel with a resistance, such as the heating element of a toaster, if you were shocked by it?
Explain.
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