R7: What is the electric potential at A?
R8: Explain why the electrical potential at B is the same as it is at A.
R9: Label points C: all the points along the vertical line through the rightmost charge where the electric potential has the same value as at A.
R10: Continuing with the same diagram, the shape of the equipotential in the plane of the page happens to be a circle. Using your answers to the last few questions, sketch the equipotential that passes through A.
-2q
A
q
B
D
R7: What is the electric potential at A?
R8: Explain why the electrical potential at B is the same as it is at A.
R9: Label points C:all the points along the ver tical line through the rightmost charge where the electric potential has the same value as at A.
1B
R10: Continuing with the same diagram, the shape of the equipotential in the plane of the page happens to be a circle. Using your answers to the last few questions, sketch the equipotential that passes through A.