Could you please tell me what the potential at a point that is 25% of the way from one particle to the other? We’re here to help you get the grades you deserve! Our tutors are available 24/7 and can answer any questions you have about your homework or tests. Whether it’s a college course or high school, we can help with all subjects from algebra to calculus and beyond. You don’t even need to leave your house – our tutors will come right to your door!
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Answer
The potential at a point is 2*k*q/(r/2) = 4*[k*q/r] =450
so k*q/r = 450/4 = 112.5
now we have V = k*q/(3r/4) + k*q/(r/4) = 4*k*q/3r + 4*k*q/r = 16*k*q/3r = 16/3*k*q/r
so new V = 16/3*112.5 = 600V
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