8) Three identical point charges (Q=+3uC) are arranged in an equilateral triangle as shown. What is the magnitude and direction of the net electric force on the charge at the origin? a) 8N at 30 degrees b) 14N at 30 degrees 0.lm. a) 20 b) 8N at 210 degrees d) 14N at 210 degrees 9) How many electrons are moving through a current of 2A for 2 s? a) 3.2 x 10-¹⁹ b) 6.28 x 10 18 c) 4 d) 2.5 x 10 19 X 10) How much electrical energy is generated by 100 W light bulb turned on for five minutes? b) 500 c)3000 d) 15,000 e) 30,000

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter16: Electrical Energy And Capacitance
Section16.1: Electric Potential Energy And Electric Potential
Problem 16.4QQ: If a negatively charged particle is placed at point B in Figure 16.3 and given a very small kick to...
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8) Three identical point charges (Q=+3uC) are arranged in an equilateral triangle
as shown. What is the magnitude and direction of the net electric force on the
charge at the origin?
a) 8N at 30 degrees
b) 14N at 30 degrees
A
0.lm.
b) 8N at 210 degrees
d) 14N at 210 degrees
→X
9) How many electrons are moving through a current of 2A for 2 s?
a) 3.2 x 10-19
b) 6.28 x 10 18 c) 4
d) 2.5 x 10 19
a) 20
10) How much electrical energy is generated by 100 W light bulb turned on for
five minutes?
b) 500 c)3000 d) 15,000
e) 30,000
Transcribed Image Text:8) Three identical point charges (Q=+3uC) are arranged in an equilateral triangle as shown. What is the magnitude and direction of the net electric force on the charge at the origin? a) 8N at 30 degrees b) 14N at 30 degrees A 0.lm. b) 8N at 210 degrees d) 14N at 210 degrees →X 9) How many electrons are moving through a current of 2A for 2 s? a) 3.2 x 10-19 b) 6.28 x 10 18 c) 4 d) 2.5 x 10 19 a) 20 10) How much electrical energy is generated by 100 W light bulb turned on for five minutes? b) 500 c)3000 d) 15,000 e) 30,000
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