Question

-20
+ 30
O
+20
Four charges are placed on the circumference of a
circle of radius R, 90° apart as shown in the fig.
The electric field strength at the centre of the circle
1 250
, making angle tan-12 with the -
4o R
ve x-axis.
1 2/50
-, making angle tan-12 with the
4 , R?
+ ve x-axis
(3)
with the
1 4/20 -
-, making angle tan-1
4 R2
- ve x-axis.
(4)
1 420
-, making angle tan-, with the
418 R2
+ ve x-axis.
itibarani bana​

Answer 1

Answer:

(2)

Explanation:

the angle lies on 4th quadrant

choose (2)