College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter18: Direct-Current Circuits
Section: Chapter Questions
Problem 51AP: When two unknown resistors are connected in series with a battery, the battery delivers 225 W and...
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Concept explainers
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
Question
'Which of the following statements is true? In a closed circuit; current leaves the positive terminal of a battery, and is used up by the time it reaches the negative terminal: battery is a current source; Power is regardless if the resistors are connected in series or in parallel. Current only flows through the path of least resistance'
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