Answered: 1. What charge flows past a point in a…

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1. What charge flows past a point in a wire in 6.0 s if the wire carries a current of 2.0 A?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter1: Units And Measurement

Section: Chapter Questions

Problem 15P: Use the orders of magnitude you found in the previous problem to answer the following questions to...

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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

Answer the following. Write your solution and box your final answer on each question.

1. What charge flows past a point in a wire in 6.0 s if the wire carries a current of 2.0 A?
2. If a circuit element can withstand a maximum current of 15 A, how many electrons can pass through it each second?
3. How many electrons are transferred in a 10.0 A current that runs for 3.0 s?
4. If 2.00 × 102mA of current flows through the filament of a light bulb, how many electrons would pass through the filament in 30.0 s?
5. What feature of a river is most similar to current in an electric circuit?
(A) The depth of the river measured in meters
(B) The temperature of the water measured in degrees Celsius
(C) The vertical drop between two points along the river measured in meters
(D) The volume of water moving past a point measured in liters per second

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