Question

40. The electric field components in the figure below are E, = 800x? N/C, E, = E, = 0.
Calculate
(a) The flux through the cube, and
(b) The charge within the cube
Assume that a = 0.1 m

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Answer 1

Electric flux through the cube = E*A

= 800*.1*(.1^2)

= 0.8

b) now using guass law, flux= q/epsilon

so q= flux*epsilon

= 0.8* 8.85*10^-12

= 7.08*10^-12 Coulomb