Physics-
General
Easy
Question
If a charge q is moving towards the centre of an earthed conducting sphere of radius b with uniform velocity v. Distance of two points A and B from centre of sphere are 3a&2a. Conducting sphere is earthed with an ammeter and resistance in series (as shown)
Potential of the sphere will be
- Zero at any instant
- Increasing
- Decreasing
- Infinite
The correct answer is: Zero at any instant
Related Questions to study
physics-
If a charge q is moving towards the centre of an earthed conducting sphere of radius b with uniform velocity v. Distance of two points A and B from centre of sphere are 3a&2a. Conducting sphere is earthed with an ammeter and resistance in series (as shown)
reading of ammeter at this instant
If a charge q is moving towards the centre of an earthed conducting sphere of radius b with uniform velocity v. Distance of two points A and B from centre of sphere are 3a&2a. Conducting sphere is earthed with an ammeter and resistance in series (as shown)
reading of ammeter at this instant
physics-General
physics-
If a charge q is moving towards the centre of an earthed conducting sphere of radius b with uniform velocity v. Distance of two points A and B from centre of sphere are 3a&2a. Conducting sphere is earthed with an ammeter and resistance in series (as shown)
Net charge on surface of conductor at this instant
If a charge q is moving towards the centre of an earthed conducting sphere of radius b with uniform velocity v. Distance of two points A and B from centre of sphere are 3a&2a. Conducting sphere is earthed with an ammeter and resistance in series (as shown)
Net charge on surface of conductor at this instant
physics-General
physics-
A solid metal sphere of radius 
has a charge +2Q. A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge -Q. find calculate the potential difference between the spheres.
A solid metal sphere of radius has a charge +2Q. A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge -Q. find calculate the potential difference between the spheres.
physics-General
physics-
In uniform electric filed 
as shown in figure, find
a) 
b) 
In uniform electric filed as shown in figure, find
a)
b)
physics-General
physics-
A uniform electric field of 100 V/m is directed at 30° with the positive 
-axis as shown in figure. Find the potential difference 
if OA=2 m and OB=4 m.
A uniform electric field of 100 V/m is directed at 30° with the positive -axis as shown in figure. Find the potential difference if OA=2 m and OB=4 m.
physics-General
physics-
A neutral conducting spherical shell is kept near a charge q as shown. The potential at point P due to the induced charges is 
A neutral conducting spherical shell is kept near a charge q as shown. The potential at point P due to the induced charges is
physics-General
physics-
If the electric potential of the inner metal sphere is 10 volt & that of the outer shell is 5 volt, then the potential at the centre will be :
If the electric potential of the inner metal sphere is 10 volt & that of the outer shell is 5 volt, then the potential at the centre will be :
physics-General
physics-
A solid metal sphere of radius R has a charge +2Q A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge - Q.
Find the inner sphere is earthed, what is the charge on it.
A solid metal sphere of radius R has a charge +2Q A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge - Q.
Find the inner sphere is earthed, what is the charge on it.
physics-General
physics-
A solid metal sphere of radius R has a charge +2Q A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge - Q.
What would be the final distribution of charges if the spheres are joined by a conducting wire.
A solid metal sphere of radius R has a charge +2Q A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge - Q.
What would be the final distribution of charges if the spheres are joined by a conducting wire.
physics-General
physics-
A solid metal sphere of radius R has a charge +2Q A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge - Q.
Find the electric field between the spheres at a distance 
from the centre of the inner sphere. [R<r<3R].
A solid metal sphere of radius R has a charge +2Q A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge - Q.
Find the electric field between the spheres at a distance from the centre of the inner sphere. [R<r<3R].
physics-General
physics-
Electrostatic force on a charged particle is given by 
If q is positive 
and if q negative 
Question : In the figure 
Block A is neutral while 
Sizes of A and B are negligible. B is released from rest at a distance 1.8 m from A. Initially spring is neither compressed nor elongated
The amplitude of oscillation of the combined mass will be :
Electrostatic force on a charged particle is given by If q is positive and if q negative
Question : In the figure Block A is neutral while Sizes of A and B are negligible. B is released from rest at a distance 1.8 m from A. Initially spring is neither compressed nor elongated
The amplitude of oscillation of the combined mass will be :
physics-General
physics-
Electrostatic force on a charged particle is given by If q is positive and if q negative
Question : In the figure Block A is neutral while Sizes of A and B are negligible. B is released from rest at a distance 1.8 m from A. Initially spring is neither compressed nor elongated
Equilibrium position of the combined mass is at x=……….m.
Electrostatic force on a charged particle is given by If q is positive and if q negative
Question : In the figure Block A is neutral while Sizes of A and B are negligible. B is released from rest at a distance 1.8 m from A. Initially spring is neither compressed nor elongated
Equilibrium position of the combined mass is at x=……….m.
physics-General
physics-
Electrostatic force on a charged particle is given by If q is positive and if q negative
Question : In the figure Block A is neutral while Sizes of A and B are negligible. B is released from rest at a distance 1.8 m from A. Initially spring is neither compressed nor elongated
If collision between A and B is perfectly inelastic, what is velocity of combined mass just after collision ?
Electrostatic force on a charged particle is given by If q is positive and if q negative
Question : In the figure Block A is neutral while Sizes of A and B are negligible. B is released from rest at a distance 1.8 m from A. Initially spring is neither compressed nor elongated
If collision between A and B is perfectly inelastic, what is velocity of combined mass just after collision ?
physics-General
physics-
A negative point charge placed at the point A is
A negative point charge placed at the point A is
physics-General
physics-
Two fixed charges 4Q (positive) and Q (negative) are located at A and B, the distance AB being 3 m.
Two fixed charges 4Q (positive) and Q (negative) are located at A and B, the distance AB being 3 m.
physics-General
