Charges Q and Q (Q $\neq$ Q), Separated by a Distance D, Produce a Potential V_P

question 90

Multiple Choice

Charges Q and q (Q $\neq$ q) , separated by a distance d, produce a potential V_P = 0 at point P. This means that

• A) no force is acting on a test charge placed at point P.
• B) Q and q must have the same sign.
• C) the electric field must be zero at point P.
• D) the net work in bringing Q to distance d from q is zero.
• E) the net work needed to bring a charge from infinity to point P is zero.

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