In a diagram, 10 electric field lines emerge normally through an area of at point A

PHYSICS · Subjective · AP · Physics C: Electricity and Magnetism · Electric Charges Fields and Gauss's Law · Electric Charges Fields and Gauss's Law

Problem

In a diagram, 10 electric field lines emerge normally through an area of

2\,\text{cm}^2

at point A, whereas only 2 lines emerge through an equal area at point B. Assuming both small areas are oriented perpendicular to the lines, calculate the ratio

E_A : E_B

of the electric field strengths at the two points.

Related theory

Electric Field Lines
Electric Field
Electric lines of force
Electricity
Electric Charges and Fields

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