ElectrostaticsHard
Question
The electric potential decreases uniformly from 180 V to 20 V as one moves on the X-axis from x = − 2 cm to x = + 2 cm. The electric field at the origin :
Options
A.must be equal to 40V/cm.
B.may be equal to 40V/cm.
C.may be greater than 40V/cm.
D.may be less than 40V/cm.
Solution
from given data Ex = 
V/cm = 40 V/cm
but E =
⇒ E may be equal or greater than 40 V/cm ie.
V/cm = 40 V/cmbut E =
⇒ E may be equal or greater than 40 V/cm ie. Create a free account to view solution
View Solution FreeMore Electrostatics Questions
Two identical particles of mass m carry a charge Q each. Initially one is at rest on a smooth horizontal plane and the o...The electric field above a uniformly charged nonconducting sheet is E. If the nonconducting sheet is now replaced by a c...Fig. shows field lines of an electric field, the line spacing parallel to the page is same every where. If the magnitude...An electric dipole is kept in the electric field produced by a point charge....Which one of the following pattern of electric line of force can′t possible : -...