An electric field is produced by the very long, uniformly charged rod drawn above. If the strength of the electric field is E1 at a distance 1 r from the axis of the rod, at what distance from the axis is the field strength 1
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Ответ:
hello the complete question is attached below
answer :
r2 = 4r1
Explanation:
Electric field strength = F / q
we will assume the rod has an infinite length
For an infinitely charged rod
E ∝ 1/ r
considering two electric fields E1 and E2 at two different locations as described in the question
E1/E2 = r1/r2 ----- ( 2 )
Calculate for r2 when E2 = E1/4
back to equation 2
E1 / (E1/4) = r1 / r2
∴ r2 = 4r1
Ответ: