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What is resultant electric field ? Please explain it

What is resultant electric field ?
Please explain it

Question Image
Grade:12th pass

1 Answers

Vikas TU
14149 Points
2 years ago
Hiiii
Ex = integral (from pie/2 to pie ) dE *SinQ 
By defiition of charge per unit length 
ππ2ππ2π
Lmbda = q/ (pie/2)*R
dq = Lambda* R*dQ
Ex = K* lambda/R
Etotal = 2*Ex
=> k*2lambda/R
=> 4Kq/PieR2
so, option A is correct.
 
 

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