Question

each corner A and C has
q1 and on the each
Corner B and D has charge -q2 is square of ABCD side l

Answer 1

Explanation:

А Solution contains 5 g each of water and Nacl what will be the mole fraction Nacl in it. (a) 0.085 (6) 0.531 (0) 0.278 6) 0.235

Answer 2

Given:

A square ABCD with edge length l

Charge +q1 on A and C

Charge -q2 on B and D

To find:

The force experienced by charge +q kept at the center of the square

Solution:

Force experienced by 2 charges q1 and q2 kept at a distance r from each other = k x q1 x q2 /r²

Force is a vector quantity and is added using vector notation.

Let Fa, Fb, Fc, and Fd be the forces exerted by vertex A, B, C, and D respectively on the charge at the center. (refer to the figure)

Fa and Fc are equal in magnitude but opposite in direction, hence they cancel each other.

Same is the case with Fb and Fd

Hence, the net force on +q is Fa +Fb - Fc -Fd = 0

(The complete question is: A square ABCD with charge q1 on each corner A and C and charge -q2 on corner B and D has side l. Find the force experienced by a charge +q kept at the center O of the square.)