voltage difference is applied a long a wire on the x axis, as shown. A positive charge q1 = +2.0 μC moves from left-to-right and a negative charge  q2 = –2.0 μC moves from right-to-left across the dashed line, in a time interval t = 1.0 s. The total electric current moving across the dashed line is:

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Chapter1: Units, Trigonometry. And Vectors
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A voltage difference is applied a long a wire on the x axis, as shown. A positive charge q1 = +2.0 μC moves from left-to-right and a negative charge  q2 = –2.0 μC moves from right-to-left across the dashed line, in a time interval t = 1.0 s. The total electric current moving across the dashed line is:

A.

0 μC/s

B.

4 μC/s, –x direction

C.

2 μC/s, +x direction

D.

4 μC/s, +x direction

E.

2 μC/s, –x direction

V = +0.2 V
-
+2 μC
–2 μC
V = +0.1 V
Transcribed Image Text:V = +0.2 V - +2 μC –2 μC V = +0.1 V
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