In a loop in a closed circuit, the sum of the currents entering a junction equals the sum of the currents leaving a junction because A. current is used up after it leaves a junction. B. charge is neither created nor destroyed at a junction. OC. there are no transformations of energy from one type to another in a circuit loop. D. the potential of the nearest battery is the potential at the junction. OE. capacitors tend to maintain current through them at a constant value.

In a loop in a closed circuit, the sum of the currents entering a junction equals the sum of the currents leaving a junction because A. current is used up after it leaves a junction. B. charge is neither created nor destroyed at a junction. OC. there are no transformations of energy from one type to another in a circuit loop. D. the potential of the nearest battery is the potential at the junction. OE. capacitors tend to maintain current through them at a constant value.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.

Question

In a loop in a closed circuit, the sum of the currents entering a junction equals the sum of the currents leaving a junction because
OA. current is used up after it leaves a junction.
OB. charge is neither created nor destroyed at a junction.
OC. there are no transformations of energy from one type to another in a circuit loop.
OD. the potential of the nearest battery is the potential at the junction.
OE. capacitors tend to maintain current through them at a constant value.

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