Consider a circular loop that is uniformly charged and has a radius a 2 . Find the position along the positive z -axis of the cartesian coordinate system where the electric field is maximum if the r

Question

Consider a circular loop that is uniformly charged and has a radius $a 2$ . Find the position along the positive z -axis of the cartesian coordinate system where the electric field is maximum if the ring was assumed to be placed in xy-plane at the origin :

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Answer:

C

Solution:

$E = \frac{KQr}{( x ^{2} + R ^{2} ) ^{3/2}} \frac{dE}{dx} = 0 ∴ x = \frac{R}{2} = \frac{2 a}{2} = a$

TestHub · Accepted Answer

​ E = ( x 2 + R 2 ) 3/2 KQr ​ dx dE ​ = 0 ∴ x = 2 ​ R ​ = 2 ​ 2 ​ a ​ = a ​

Physics - Electrostatics Question with Solution | TestHub

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