Question

19.
The charge per unit length of the four quadrant of 2
the ring is 21, -21, 2 and a respectively. The electric
field at the centre is -
S
(A)- 21€,R
X
X
X
a
+
(B) 2nɛR
Xxx
1222
-
A
(C) 21€R
(D) None​

Answer 1

Answer:

take it out by sin tita

Explanation:

Find its alpha and bita