Answer to Question #254503 in Physics for shamsa

Question

3. For potential energy, V, in Coulomb’s Law to be a large negative number which of the following should be true? Where a constant, r is the radius, and qn are point charges. V=keq1q2r2

A. r is very small and both charges should have opposite signs 

B. r is very small and both charges should be the same sign.

C. r is very large and both charges have opposite signs.

 D. r is very large and both charges should be the same sign. 

Answer 1

Answer: A. r is very small and both charges should have opposite signs .