Electrostatics> STRAIGHT OBJECTIVE TYPE...
(Q) The charge per unit length of four quadrant of a ring of radius R is 2λ, -2λ, λ and -λ respectively. The electric field at the centre is
(a) −(λ ÷ 2∏ε R) î
(b) (λ ÷ 2∏ε R) j
(c) (√2λ ÷ 4∏ε R) î
(d) None of the above
4 Answers
Last Activity: 11 Years ago
a -(λ\ 2pie e r)
Last Activity: 11 Years ago
answer is 1. considering the centre to be at origin. electric field can be easily found out due to each quadrant. the net field along y axis is zero
Last Activity: 11 Years ago
Answer is (a)
Electric field due to circular ring at the centre is
|
(2kλ⁄R)sinθ/2 where θ is angle of that sector and direction of electric field is along bisector of that angle
|
Last Activity: 11 Years ago
1st one is correct
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Get your questions answered by the expert for free
Last Activity: 2 Years ago
Last Activity: 2 Years ago
Last Activity: 3 Years ago
Last Activity: 3 Years ago
Last Activity: 3 Years ago
