Volume 2
An oil drop of charge of 2 electrons fall freely with a terminal speed. The mass of oil drop so, it can move upward with same terminal speed, if electric field of 2×10^3 V/m is applied, is
05
Dec
An oil drop of charge of 2 electrons fall freely with a terminal speed. The mass of oil drop so, it can move upward with same terminal speed, if electric field of 2×10^3 V/m is applied, is An oil drop of charge of 2 electrons fall freely with a terminal speed. The mass of oil [...]
A copper ball of density pc and diameter d is immersed in oil of density po. What charge should be present on the ball , so that it could be suspended in the oil, if a homogeneous electric field E is applied vertically upward?
05
Dec
A copper ball of density pc and diameter d is immersed in oil of density po. What charge should be present on the ball , so that it could be suspended in the oil, if a homogeneous electric field E is applied vertically upward? A copper ball of density pc and diameter d is immersed [...]
Two charged particles of charge +2q and +q have masses m and 2m respectively. They are kept in uniform electric field allowed to move for the same time. Find the ratio of their kinetic energies.
05
Dec
Two charged particles of charge +2q and +q have masses m and 2m respectively. They are kept in uniform electric field allowed to move for the same time. Find the ratio of their kinetic energies. Two charged particles of charge +2q and +q have masses m and 2m respectively. They are kept in uniform electric [...]
In the diagram shown electric field intensity will be zero at a point:
05
Dec
In the diagram shown electric field intensity will be zero at a point: In the diagram shown electric field intensity will be zero at a point: December 5, 2020 Category: Arihant Physics by D.C Pandey , Chapter 1 - Electric Charges and Fields , Volume 2 ,
An infinite plane consists of a positive charge and has σC/m^2 surface charge density. Calculate the angle θ, if a metallic ball B of mass m and charge +Q is attached to a thread and tied to a point A on the sheet PQ, as shown in figure: (ϵ0 = permittivity of air).
05
Dec
An infinite plane consists of a positive charge and has σC/m^2 surface charge density. Calculate the angle θ, if a metallic ball B of mass m and charge +Q is attached to a thread and tied to a point A on the sheet PQ, as shown in figure: (ϵ0 = permittivity of air). An infinite [...]
Between two large parallel plates, a uniform vertical field E is set up as shown in figure. Find the period of oscillation of the pendulum, if the pendulum of length L having a small conducting sphere of mass m and charge +q is oscillating between the plates.
05
Dec
Between two large parallel plates, a uniform vertical field E is set up as shown in figure. Find the period of oscillation of the pendulum, if the pendulum of length L having a small conducting sphere of mass m and charge +q is oscillating between the plates. a uniform vertical field E is set up [...]
Two charges of value 2 uC and -50 C are placed 80 cm apart. Calculate the distance of the point from the smaller charge where the intensity will be zero.
05
Dec
Two charges of value 2 uC and -50 C are placed 80 cm apart. Calculate the distance of the point from the smaller charge where the intensity will be zero. Two charges of value 2 uC and -50 C are placed 80 cm apart. Calculate the distance of the point from the smaller charge where [...]
A small block of mass ‘m’ is kept on a smooth inclined plane of angle 30^o placed in an elevator going upward with acceleration ‘a’. Electric field E exists between the vertical sides of the wall of elevator. The charge on the block is +q. The time taken by the block to come to the lowest point of the inclined plane is (Take the surface to be smooth.)
05
Dec
A small block of mass ‘m’ is kept on a smooth inclined plane of angle 30^o placed in an elevator going upward with acceleration ‘a’. Electric field E exists between the vertical sides of the wall of elevator. The charge on the block is +q. The time taken by the block to come to the [...]
If a charged particle is projected on a rough horizontal surface with speed v0 . Find the value of dynamic coefficient of friction, if the kinetic energy of the system is constant.
05
Dec
If a charged particle is projected on a rough horizontal surface with speed v0 . Find the value of dynamic coefficient of friction, if the kinetic energy of the system is constant. If a charged particle is projected on a rough horizontal surface with speed v0 . Find the value of dynamic coefficient of friction [...]
A point charge is projected along the axis of circular ring of charge Q and radius 102–√cm. The distance of the point charge from centre of ring, where acceleration of charged particle is maximum, will be
05
Dec
A point charge is projected along the axis of circular ring of charge Q and radius 102–√cm. The distance of the point charge from centre of ring, where acceleration of charged particle is maximum, will be A point charge is projected along the axis of circular ring of charge Q and radius 102–√cm. The distance [...]