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Problem 3.1 A. In the circuit at right, use your model for electric current to rank the bulbs according to brightness when the switch is open. Explain your reasoning. B. Rank the bulbs according to brightness when the switch is closed. Explain your reasoning.

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Answer #1

Brightness depends on power output of bulb( VxI).LeReistance ofau Bbsar equa (Ideti dl val denti cl* <A Wlhe tch is open tacreis no concnt in 2 Raihtessof Antts of C and Bightness of Bo The Reivole Resistane RA 2 2. 2 3 P From con Division Rule RAtR3 R+R3R 3 P 2 RA + RB 3R 3RPowe out buut OR N2. O R B P 3 R htess of c

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