1. A positive point charge and a negative point charge have equal magnitudes. On

Question

1. A positive point charge and a negative point charge have equal magnitudes. One charge is fixed to one corner of a square, and the other is fixed to another corner. On which corners should the charges be placed, so that the same potential exists at the empty corners?

A. opposite each other along the horizontal

B. opposite each other along the vertical

C. opposite each other along the diagonal

2. What point charges, all having the same magnitude, would you place at the corners of a square (one charge per corner), so that both the electric field and the electric potential (assuming a zero reference value at infinity) are zero at the center of the square?

A. negative on top, positive on bottom

B. positive on top, negative on bottom    

C. positive on the left side, negative on the right

D. positive on one diagonal, negative on the other

E. negative on the left side, positive on the right

Explanation / Answer

as per chegg guidelines i can answer only one (First one).Please raise different question for others.

1)

Answer is C. opposite each other along the diagonal

Explanation: V=kq/r

Vn=Kq/r+(k(-q)/r

=0

Since potential is same at each corner ,so charges should be placed diagonally at opposite corners

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.