Q4 of 106 Page 120

The electric potential decreases uniformly from 120V to 80V as one moves on the x-axis from x = –1 cm to x = +1 cm. The electric field at the origin



Here also, and


Upon solving, we get but it will also depend on the angle that equipotential surface makes with the X axis.


Therefore, the value of electric field may greater than 20V/cm (if the potential decreases uniformly) or equal to 20 V/cm (when equipotential surfaces are at right angles from X axis.)

More from this chapter

All 106 →
2

A point charge is brought in an electric field. The electric field at a nearby point.

 3

The electric field and the electric potential at a point are E and V respectively.

 5

Which of the following quantities do not depend on the choice of zero potential or zero potential energy?

 6

An electric dipole is placed in an electric field generated by a point charge.