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(10%) Problem 4: The figure shows the electric field lines near two charges q1 (red) and q2 (blue) Otheexpertta.com -ㅿ 50% Part (a) What is the ratio of their charges?

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Answer #1

The field lines for q1 is outward, so q1 is positive whereas for q2 it is inward, so q2 is negative.

No. of field lines going out from q1 (count from the figure) = 23

No. of field lines going into q2 (count from the figure) = 12

So the ratio is:

q1/q2 = 23/(-12)

= -1.92

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