a) The electric filed is independent of the size of the disk b)The electric file
ID: 1886220 • Letter: A
Question
a) The electric filed is independent of the size of the disk
b)The electric filed is dependent of the size of the disk
c)The electric filed is independent of the distance, z from the disk
d)The electric filed is dependent of the thickness of the disk
e)The electric filed is dependent of the surface charge density of the disk
#2 Select all correct statements about the electric flux:
a)the electric flux does not depends on the area
b)the electric flux is defined as the electric field times the area perpendicular to the field
c)the electric flux is a direct result of the dot product; it is a scalar quantity
d)If the area of flux consideration is not flat, then we have to integrate over the area to find the total flux
e)the electric flux is a direct result of the cross product; it is a vector quantity
Explanation / Answer
1] a,c,e
Electric field in such case is E = sigma/2e0 where sigma is surface charge density.
2] b,c,d
Flux = integral E.dA or E.A
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