Tutorials in Introductory Physics
Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Chapter 20.1, Problem 2TH

Use the model for electric current to rank the networks shown below in order according to resistance. Explain your reasoning.

Chapter 20.1, Problem 2TH, Use the model for electric current to rank the networks shown below in order according to

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Find the current through each of the resistors in the circuit below. Give both the magnitude and direction of current flow. Give answers in form: "3.5Amps Right" or "2.25Amps Left" (note: spaces are important for the computer to give you credit.) Answer boxes are for current through resistors 3 Ohm, 6 Ohm, and 2 Ohm in that order.
Explain how to find an internal resistance of a battery given two resistors, batteries, and a multimeter(s). Draw-up procedure on how to perform this experiment. Include a circuit(s) diagram to illustrate your procedure.
Click the link below: https://phet.colorado.edu/sims/html/resistance-in-a-wire/latest/resistance-in-a-wire_en.html Try increasing the resistivity of the resistor. The picture at the bottom of the screenshows what would physically happen to the resistor.a) How does this change the “look” of the resistor?  b) Describe how that relates to the formula you just wrote (direct, or inverse).  c) What happens to the value of “R” (Resistance)?  d) What would you have to do to change the resistivity of a resistor in a circuit?

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