X and Y are large, parallel conducting plates close to each other. Each face has an area A. X is given a charge Q. Y is without any charge. Point A, B and C are as shown in the figure. Find the incorrect option.
1. the field at B is
2. the field at B is
3. the fields at A, B and C are of the same magnitude
4. the fields at A and C are of the same magnitude, but in opposite directions