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Alecsey [184]
3 years ago
8

A positive test charge q is released from rest at distance r away from a charge of Q and a distance 2r away from a charge of 2Q.

How will the test charge move immediately after being released?
to the left
to the right
stay still
other
Question) 2) Briefly explain your reasoning
Physics
1 answer:
Luba_88 [7]3 years ago
7 0

Answer: Option (b) is the correct answer.

Explanation:

It is given that a positive test charge q is released from rest at a distance r away from a charge of +Q and a distance 2r which is away from a charge of +2Q.

Then test charge to the right immediately after being released.

Therefore, the net force will be as follows.

            F = \frac{kqQ}{r^{2}} - kq\frac{(2Q)}{(2r)^{2}}

               = \frac{4KqQ - 2KqQ}{4r^{2}}

               = \frac{KqQ}{2r^{2}}

           F = \frac{KqQ}{2r^{2}} > 0

Thus, we can conclude that the test charge move to the right immediately after being released.

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