Question

electric field at point (a,0,0) is E. now if a>>l then??​

Answer 1

List–I List–II

P. E is indpendent of d 1. A point charge Q at the origin

Q. E∝ 1/d 2. A small dipole with point charges Q at (0,0,l) and – Q at (0,0, – l).

Take 2l << d

R. E∝ 1/d2 3. An infinite line charge coincident with the x-axis, with uniform linear charge density λ.

S. E∝ 1/d3 4. Two infinite wires carrying uniform linear

Charge density parallel to the x - axis. The one along (y = 0, z = l) has a charge density +λ and the one along (y = 0, z = – l) has a charge

density – λ. Take 2l << d

5. Infinite plane charge coincident with the xy-plane with uniform surface charge density

I HOPE IT HELPS. ☺

Answer 2

Answer:

$\fbox\red{h}\fbox\purple{a}\fbox\pink{p}\fbox\green{p}\fbox\orange{y}$

To Help..

$\huge\star{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

List–I List–II

P. E is indpendent of d 1. A point charge Q at the origin

Q. E∝ 1/d 2. A small dipole with point charges Q at (0,0,l) and – Q at (0,0, – l).

Take 2l << d

R. E∝ 1/d2 3. An infinite line charge coincident with the x-axis, with uniform linear charge density λ.

S. E∝ 1/d3 4. Two infinite wires carrying uniform linear

Charge density parallel to the x - axis. The one along (y = 0, z = l) has a charge density +λ and the one along (y = 0, z = – l) has a charge

density – λ. Take 2l << d

5. Infinite plane charge coincident with the xy-plane with uniform surface charge density