The drawing below shows a graph of a set of equipotential surfaces in cross sect
ID: 2129994 • Letter: T
Question
The drawing below shows a graph of a set of equipotential surfaces in cross section. The grid lines are d = 3.3 cm apart. Determine the magnitude and direction of the electric field at position D. Specify whether the electric field points toward the top or the bottom of the drawing.
The drawing below shows a graph of a set of equipotential surfaces in cross section. The grid lines are d = 3.3 cm apart. Determine the magnitude and direction of the electric field at position D. Specify whether the electric field points toward the top or the bottom of the drawing.
Explanation / Answer
The relation between potential and electric field isdelta V = E d
E = delta V / d
= (550.0V - 450.0 V) / (0.066 cm)
= 1515 V
The direction of electric field is downwards.