Why should electrostatic field be zero inside a conductor ?
In the static equilibrium, there is no current inside, or on the surface of the conductor, hence the electric field is zero everywhere inside the conductor.
Alternatively,
Since the charge inside the conductor is zero, the electric field is also zero.
OR
Alternatively,
Since the conductor is uncharged so the electric field inside it is zero.
Alternatively,
Since the charge inside the conductor is zero, the electric field is also zero.
OR
Alternatively,
Since the conductor is uncharged so the electric field inside it is zero.
Find the expression for electric field intensity in an axial position due to electric dipole.
A charge q is placed at one corner of the cube. The electric flux passing through any one of its face is
Two charges of 2uC and 5uC are placed 2.5 cm apart. The ratio of Coulomb's force experienced by them is
When a body charges by conduction, its mass
(A) Remains same
(B) Increases
(C)Decreases
(D)Increase or decrease
Electric charge between two bodies can be produced by
(A )Sticking
(B) Rubbing
(C) Oiling
(D) Passing AC current
Why are electric field lines perpendicular at a point on an equipotential surface of a conductor ?
In the given figure, charge +Q is placed at the centre of a dotted circle. Work done in taking another charge +q from A to B is W₁ and from B to C is W₂. Which one of the following is correct ?
i) W₁ > W₂
(ii) W₁ = W₂
(iii) W₁ < W₂
Two point charges ‘q1’ and ‘q2’ are placed at a distance ‘d’ apart as shown in the figure. The electric field intensity is zero at a point ‘P’ on the line joining them as shown. Write two conclusions that you can draw from this.
Define the term mobility of charge carriers in a conductor. Write its S.I. unit.
When electrons drift in a metal from lower to higher potential, does it mean that all the free electrons of the metal are moving in the same direction ?
State which of the two a capacitor or an inductor, tends to become SHORT when the frequency of the applied alternating voltage has a high value.
What is the geometrical shape of equipotential surfaces due to an isolated charge ?