A flat square 3.7 cm x 3.7 cm plate has a total charge of -1.4 pC...
A flat square 3.7 cm x 3.7 cm plate has a total charge of -1.4 pC (that is picoCoulomb). It is centered on the x-axis at x=0. What is the x-component of the electric field at the point xtest = 2.1 mm?
Homework Answers
To find E above the midpoint of a plane of length L , width W and uniform surfact charge density ? (charge per area), slice the plane into many thin rods. since the chage of the plate is negative the electric field vector will go toward de plate in a -x direction but the module is the same as if the charge density is positive.
The vertical components of dE from two symmetrically located thin slices will cancel so Enet is along the x-axis:
The final answer is 51.816 N/C
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A flat square 3.7 cm x 3.7 cm plate has a total charge of -1.4
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