Use the model for electric current to rank the resistor networks shown below in

Question

Use the model for electric current to rank the resistor networks shown below in order by resistance from largest to smallest. Explain your reasoning. 1. igtod 2. If a battery were connected to each of the circuits in Question 1, in which network would the current through the battery be the largest? The smallest? Explain your reasoning 3. The diagram to the right shows a typical household circuit. The appliances (lights, television, toaster, etc.) are represented by boxes labeled 1, 2, 3, and so on. The fuse, or circuit breaker, shown in the diagram is a switch intended to shut off the circuit automatically if the wires become too hot because the current in the circuit is too large. Note: Although houses in the United States use alternating current (AC), which differs in some ways from the direct current (DC) we have been studying, you can use the model you developed for this problem. a. What happens to the current through the fuse when more appliances are added to the circuit? Describe evidence from this lab for your answer. Does the current through element 1 change when elements 2 and 3 are added to the circuit? Describe evidence from this lab for your answer. b.

Explanation / Answer

1) A=R

B=2R/3

C=2R

D=R/2

E=3R/2

Arranging the resistance from largest to

smallest,

C, E, A, B ,D

  

  

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