STROBE G NAN 1. Explain how AC and DC current are different in your own words. Give an example of when you might encounter each type of current 2. You find that there is too much resistance in a circuit to light up your LED's when you put them in a row, so you decide to hook them up in parallel. Why do they now light up and what possible danger is there now?

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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PHOTOTRANSISTOR
1. Explain how AC and DC current are different in your own words. Give an
example of when you might encounter each type of current
2. You find that there is too much resistance in a circuit to light up your LED's
when you put them in a row, so you decide to hook them up in parallel. Why
do they now light up and what possible danger is there now?
Transcribed Image Text:PHOTOTRANSISTOR 1. Explain how AC and DC current are different in your own words. Give an example of when you might encounter each type of current 2. You find that there is too much resistance in a circuit to light up your LED's when you put them in a row, so you decide to hook them up in parallel. Why do they now light up and what possible danger is there now?
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Current is defined as the rate of flow of charges. The charges flow from a region of higher concentration to a region of lower concentration. Even though electrons are the charge carriers in metals, we consider the direction opposite them to correspond to the direction of the flow of positive charges. And this is directed from the higher potential (more positive charge) to lower potential (more negative charge)

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