Physics FUN!?

Question

Consider two UNLIKE CHARGES q1 and q2 of EQUAL MAGNITUDES. which are seperated by distance d. distance d has to be equal or greater to 0.

Calculate mathematically where a third charge q3 should be placed such that the net or resultant electric force acting on q3 is zero

Answer 1

I can imagine how, the only answer I can come up with is to move q3 an infinite distance away.

If you had LIKE charges or unequal magnitudes then I could probably work with that

Answer 2

It has to be the same charge as q1 or q2.

Use like charge repeling for q3 and place at a distance that gives a net of zero. Keep squaring the distance.

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