NEST2013PhysicsElectrostatics
A circular loop of radius a , centered at origin has five positive charges equally spaced on it. All charges have a magnitude Q , except the one at (0, a) which has a magnitude q , as shown in the figure. The electric field at the origin will be
Options
- A1 4 ₀ [ 4 Q+q a^2 ] j
- B1 4 ₀ [ Q-q a^2 ] j
- C1 4 ₀ [ 4 Q a^2 ( 2 5 )+ q a^2 ] j
- D1 4 ₀ [ 4 Q a^2 ( 2 5 )+ q a^2 ] j
Correct answer
B. 1 4 ₀ [ Q-q a^2 ] j
Step-by-step solution
No solution available.