10. In the circuit shown in the figure, four identical resistors labeled A to D are connected to a battery as shown.S₁ and S₂ are switches. Which of the following actions would result in the GREATEST amount of currentthrough resistor A?A. closing both switches10.B. closing S₁ onlyC. closing S₂ onlyD. leaving both switches open as shownABMCтеD

Step 1: Here's why:Closing both switches:This creates a direct path from the battery to resistor…

Answered: 10. In the circuit shown in the figure,…

University Physics Volume 2

18th Edition

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Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 79AP: Consider the circuit shown below. (a)Determine the equivalent resistance and the current from the...

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A person with body resistance between his hands of 1.00 k accidentally grasps the terminals of a 20.0-kV power supply. (Do NOT do this!) (a) Draw a circuit diagram to represent the situation. (b) If the internal resistance of the power supply is 2000 , what is the current through his body? (c) What is the power dissipated in his body? (d) If the power supply is to be made safe by increasing its internal resistance, what should the internal resistance be for the maximum current in this situation to be 1.00 mA or less? (e) Will this modification compromise the effectiveness of the power supply for driving low-re si stance devices? Explain your reasoning,
You have a faculty position at a community college and are m (caching a class in automotive technology. You are deep in a discussion of using jumper cables to start a car with a dead battery from a car with a fresh battery. You have drawn the circuit diagram in Figure P27.16 to explain the process. The battery on the left is the live batten- in the correctly functioning car, with emf and internal resistance RL where the L. subscript refers to live. Its terminals are connected directly across those of the dead battery, in the middle of the diagram, with emf and internal resistance RD where the D subscript refers to "dead Then, the starter in the car with the dead battery is activated by closing the ignition switch, allowing the car to start. The resistance of the starter is Rs. A student raises his hand and asks, So is the dead battery being charged while the starter is operating? How do you respond?
Consider the circuits shown below, (a) What is the current through each resistor in part (a)? (b) What is the current through each resistor in part (b)? (c) What is the power dissipated or consumed by each circuit? (d) What is the power supplied to each circuit?
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