4.2.1 Electrical Current
Presentation
•
Physics
•
10th - 12th Grade
•
Easy
David Bittinger
Used 4+ times
FREE Resource
4 Slides • 3 Questions
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4.2.1 Electrical Current
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•current (I): RATE OF CHARGE FLOW
•unit: C/s or AMPERE (A)
•requires:
•POTENTIAL DIFFERENCE (V)
•PATH FOR FLOW
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Example 1
100 coulombs of charge pass through point A in 4.0 seconds. What is the rate of current flow through point A?
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Multiple Choice
•During a thunderstorm a lightning strike transfers 15.0 coulombs of charge in 10.0 milliseconds.
–What was the electrical current produced in the strike?
1.5 A
1500 A
0.67 A
6.7E-4 A
5
Multiple Choice
Example 3: A wire carries a current of 50 amperes. How much charge flows through the wire in 10 seconds?
0.2 A
5 C
500 C
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Example 3: Converting coulombs to electrons
A wire carries a current of 50 amperes. How many electrons pass through the wire in 10 seconds?
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Multiple Choice
A phone draws a current of 0.120 amperes from a 3.00 volt battery. What is the total charge that passes through the player in 900. seconds?
324 C
108 C
5.40 C
1.80 C
4.2.1 Electrical Current
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