Homework Answers
considering equilibrium of forces along vertical
T cos x = mg ... (i)
Considering equilibrium of forces along horizontal
T sin x = qE .... (ii)
dividing (ii) from (i)
tan x = qE / mg
tan x = 25*10^-9* 4*10^5 /( 2*10^-3/9.8)
x = 27 deg
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Comment in case any doubt, will reply for sure .. Goodluck
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