Question

predict the electric field around this line of charges (a charged rod)

Answer 1

here's the picture

Answer 2

First thing we wanto to do is to denote the linear charge (charge per unit lenght) by \(\lambda = \frac{dQ}{dl}\).

Answer 3

Have you ever studied calculus?

Answer 4

I'm doing calculus now

Answer 5

Also, where are we supposed to calculate the field?

Answer 6

It could be above the rod, in its side, etc.

Answer 7

Oh. I see. Around it. So we we have to check for all stated cases.

Answer 8

All right. Let's do it next to the rod.

Answer 9

ok