Consider the circuit shown in the figure below. (Assume R, = 10.5 N, R, = 1.55 2, and V = 6.80 V.) R1 4.00 N 5.00 N 3.00 N V + (a) Calculate the equivalent resistance of the R, and 5.00-N resistors connected in parallel. Ω (b) Using the result of part (a), calculate the combined resistance of the R, 5.00-N and 4.00-2 resistors. Ω (c) Calculate the equivalent resistance of the combined resistance found in part (b) and the parallel 3.00-N resistor. Ω

Consider the circuit shown in the figure below. (Assume R, = 10.5 N, R, = 1.55 2, and V = 6.80 V.) R1 4.00 N 5.00 N 3.00 N V + (a) Calculate the equivalent resistance of the R, and 5.00-N resistors connected in parallel. Ω (b) Using the result of part (a), calculate the combined resistance of the R, 5.00-N and 4.00-2 resistors. Ω (c) Calculate the equivalent resistance of the combined resistance found in part (b) and the parallel 3.00-N resistor. Ω

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 45P: A child's electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of...

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A child's electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of 0.0200 inseries with a 1.53-V carbon-zinc dry cell having a 0.100- internal resistance. The load resistance is 10.0 . (a) Draw a circuit diagram of the toy and itsbatteries, (b) What current flows? (c) How much power is supplied to the load? (d) What is the internal resistance of the dry cell if it goes bad, resulting in only 0.500 W being supplied to the load?
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