Peoples Physics Concepts

(Marvins-Underground-K-12) #1

13.5. Resistor Circuits http://www.ck12.org


b. What is the resistance betweenCandB?
c. What is the resistance betweenDandE?
d. What is the the total equivalent resistance of the circuit?
e. What is the current leaving the battery?
f. What is the voltage drop across the 12Ωresistor?
g. What is the voltage drop betweenDandE?
h. What is the voltage drop betweenAandB?
i. What is the current through the 25Ωresistor?
j. What is the total energy dissipated in the 25Ωif it is in use for 11 hours?




    1. You are given the following three devices and a power supply of exactly 120 v.∗DeviceXis rated at 60 V
      and 0.5 A∗DeviceYis rated at 15 w and 0.5 A∗DeviceZis rated at 120 V and 1800 w Design a circuit that
      obeys the following rules: you may only use the power supply given, one sample of each device, and an extra,
      single resistor of any value (you choose). Also, each device must be run at their rated values.




Answers to Selected Problems


  1. 0.5A
    2..

  2. a. 0.94 A b. 112 W c. 0.35 A d. 0.94 A e. 50, 45 , 75 Ωf. both 50Ωresistors are brightest, then 45Ω, then
    75 Ω

  3. a. 0.76 A b. 7.0 W

  4. b. 1000 W
    6..

  5. a. 9. 1 Ωb 29. 1 Ωc. 10. 8 Ωd.26. 8 Ωe. 1.8A f. 21.5V g. 19.4V h. 6.1V i. 0.24A j. 16 kW
    8..

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