Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Chapter 28, Problem 19SP

Compute the equivalent resistance of (a) 3.0 Ω, 6.0 Ω, and 9.0 Ω in parallel; (b) 3.0 Ω, 4.0 Ω, 7.0 Ω, 10.0 Ω, and 12.0 Ω in parallel; (c) three 33-Ω heating elements in parallel; (d) twenty 100-Ω lamps in parallel.

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Three resistors rated at 20 Ω, 68 Ω, and 51 Ω are connected in series in a circuit.  What is the equivalent resistance (in Ω) of this combination of resistors [round your final answer to zero decimal places]?
Rank the following circuits in order from highest to lowest values of the net power output of the battery. (i) A 1.4 Ω resistor connected to a 1.5 V battery that has an internal resistance of 0.10 Ω; (ii) a 1.8 Ω resistor connected to a 4.0 V battery that has a terminal voltage of 3.6 V but an unknown internal resistance; (iii) an unknown resistor connected to a 12.0 V battery that has an internal resistance of 0.20 Ω and a terminal voltage of 11.0 V.
Two 100 Ω resistors are connected (a) in parallel, and (b) in series, to a 24.0-V battery. (a) Draw the circuit. (b)What is the current through each resistor and (c) what is the equivalent resistance of each circuit?
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How To Solve Any Resistors In Series and Parallel Combination Circuit Problems in Physics; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=eFlJy0cPbsY;License: Standard YouTube License, CC-BY