In figure below, two fixed point charges q1= -5q and q2 = +2q are separated by distance d. a) Locate the point(or points) at w/c the net electric field due to the two charges is zero. b) Sketch the net electric field lines quanlitatively..

Question

anonymous · Answer

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anonymous · Answer

@cp9454

cp9454 · Answer

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anonymous · Answer

how to solve the a)?

cp9454 · Answer

suppose at point Z electric field is zero, just equate electric field at point charge due to q1 and electric field at point charge due to q2

anonymous · Answer

i will use the fomula E =kq/r^2?

cp9454 · Answer

yeah that's correct , you have to use that one

anonymous · Answer

theres no given r?

cp9454 · Answer

look we have to find the distance at which electric field will be zero

cp9454 · Answer

i.e. you have to find x interms of D

anonymous · Answer

wasnt able to compute the electric firld without r, or should we derive a formula

cp9454 · Answer

yeah just simply put x in place of r

anonymous · Answer

so it will be r2= E(kq)

cp9454 · Answer

answer is given, i mean you know the answer

anonymous · Answer

what?, i cant understand though

cp9454 · Answer

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