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A negative charge moves between two plates (towards the right) of a parallel plate capacitor. As a result its kinetic energy will do which of the following:
A) point to the right
B) increase
C) become negative
D) not change
E) decrease
Draw a picture
3 charges of equal magnitude exist (2 negative and 1 positive) in an equilateral triangle formation. What's the direction of the net force that the positive charge and one of the negative charges (- on left and +on right of bottom) exert on the other negative charge (the top one)
To the right
Draw picture
What is the electric field (magnitude and direction) that will balance the weight of an electron?
A) 1.6 x 10^-19 N/C, downward
B) 1.02 x 10^-7 N/C, upward
C)1.02 x 10^-7 N/C, downward
D)5.58 x 10^-11 N/C, upward
E) 5.58 x 10^-11 N/C, downward
Equation
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