The drawing below shows a graph of a set of equipotential surfaces in cross sect

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.

magnitude   V/m direction ---Select---towards the left of the drawingtowards the right of the drawingtowards the top of the drawingtowards 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 is
delta V = E d
E = delta V / d
= (550.0V - 450.0 V) / (0.066 cm)
= 1515 V
The direction of electric field is downwards.

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