EASY
JEE Main/Advance
IMPORTANT
Earn 100

An arrangement of three large metallic parallel plates with respective charges marked in figure is shown. What is the charge appearing on the left face of plate B ?

Question Image

100% studentsanswered this correctly

Important Questions on Electrostatic Potential and Capacitance

MEDIUM
JEE Main/Advance
IMPORTANT

A parallel plate capacitor of area A and plate separation d is filled with two dielectrics as shown. What is the capacitance of the arrangement?

Question Image

HARD
JEE Main/Advance
IMPORTANT
Positive and negative point charges of equal magnitude are kept at 0, 0, a2 and 0, 0, -a2, respectively. The work done by the electric field when another positive point charge is moved from (-a, 0, 0) to (0, a, 0) is
HARD
JEE Main/Advance
IMPORTANT

Consider a system of three charges q3, q3 and -2q3 placed at points A, B and C, respectively, as shown in the figure. Take O to be the centre of the circle of radius R and angle CAB= 60°.

Question Image 

MEDIUM
JEE Main/Advance
IMPORTANT
Consider a thin spherical shell of radius R with its center at the origin, carrying uniform positive surface charge density. The variation of the magnitude of the electric field |Er| and the electric potential Vr with the distance r from the centre is best represented by which graph?
EASY
JEE Main/Advance
IMPORTANT
Consider a neutral conducting sphere. A positive point charge is placed outside the sphere. The net charge on the sphere is then
MEDIUM
JEE Main/Advance
IMPORTANT
Three concentric metallic spherical shells of radii R, 2R, 3R, are given charges Q1, Q2, Q3, respectively. It is found that the surface charge densities on the outer surfaces of the shells are equal. Then, the ratio of the charges given to the shells, Q1:Q2:Q3 is
MEDIUM
JEE Main/Advance
IMPORTANT
A long, hollow conducting cylinder is kept coaxially inside another long, hollow conducting cylinder of larger radius. Both the cylinders are initially electrically neutral.
MEDIUM
JEE Main/Advance
IMPORTANT

A uniformly charged thin spherical shell of radius R carries uniform surface charge density of σ per unit area. It is made of two hemispherical shells, held together by pressing them with force F (see figure). F is proportional to 

Question Image