Cengage JEE Mains Physics by B.M Sharma
Three charges +Q1, Q2 and q are placed on a straight line such that q some where in between +Q1 And + Q2 .If this system of charges is in equilibrium, what should be the magnitude and sign of charge q.
06
Dec
Three charges +Q1, Q2 and q are placed on a straight line such that q some where in between +Q1 And + Q2 .If this system of charges is in equilibrium, what should be the magnitude and sign of charge q. Q2 and q are placed on a straight line such that q some where [...]
If a charge –150 nC is given to a concentric spherical shell and a charge +50 nC is placed at its centre then the charge on inner and outer surface of the shell is
01
Dec
If a charge –150 nC is given to a concentric spherical shell and a charge +50 nC is placed at its centre then the charge on inner and outer surface of the shell is If a charge –150 nC is given to a concentric spherical shell and a charge +50 nC is placed at its [...]
A particle of mass 40 mg and carrying a charge 5×10^−9C is moving directly towards a fixed positive point charge on magnitude 10^−8C. When it is at a distance of 10 cm from the fixed positive point charge it has a velocity of 50cms^−1 at what distance from the fixed point charge will the particle come momentarily to rest ?
30
Nov
A particle of mass 40 mg and carrying a charge 5×10^−9C is moving directly towards a fixed positive point charge on magnitude 10^−8C. When it is at a distance of 10 cm from the fixed positive point charge it has a velocity of 50cms^−1 at what distance from the fixed point charge will the particle [...]
In a field free region, two electrons are released to move on a line towards each other with velocities 10^6 ms^−1 . The distance of their closest approach will be nearer to
30
Nov
In a field free region, two electrons are released to move on a line towards each other with velocities 10^6 ms^−1 . The distance of their closest approach will be nearer to In a field free region two electrons are released to move on a line towards each other with velocities 10^6 ms^−1 . The [...]
Three identical charges each of 2 uC are placed at the vertices of a triangle ABC as shown in the figure. If AB + AC = 12 cm and AB. AC = 32 cm, the potential energy of the charge at A is
30
Nov
Three identical charges each of 2 uC are placed at the vertices of a triangle ABC as shown in the figure. If AB + AC = 12 cm and AB. AC = 32 cm, the potential energy of the charge at A is the potential energy of the charge at A is Three identical charges [...]
A body of mass M and charge q is connected to a spring of spring constant k. It is oscillating along x-direction about its equilibrium position, taken to be at x=0, with an amplitude A. An electric field E is applied along the x-direction. Which of the following statements is correct ?
30
Nov
A body of mass M and charge q is connected to a spring of spring constant k. It is oscillating along x-direction about its equilibrium position, taken to be at x=0, with an amplitude A. An electric field E is applied along the x-direction. Which of the following statements is correct ? A body of [...]
Two point charges A=+3nC and B=+1nC are placed 5 cm apart in air. The work done to move charge B towards A by 1cm is
30
Nov
Two point charges A=+3nC and B=+1nC are placed 5 cm apart in air. The work done to move charge B towards A by 1cm is Two point charges A=+3nC and B=+1nC are placed 5 cm apart in air. The work done to move charge B towards A by 1cm is November 30, 2020 Category: Cengage [...]
The energy density per unit volume of medium in an electric field of intensity 400 V/m is (dielectric constant of material is 2 and e0 = 8.85 x 10^-12 units)
30
Nov
The energy density per unit volume of medium in an electric field of intensity 400 V/m is (dielectric constant of material is 2 and e0 = 8.85 x 10^-12 units) The energy density per unit volume of medium in an electric field of intensity 400 V/m is (dielectric constant of material is 2 and e0 [...]
Calculate the energy per unit volume of a medium of dielectric constant 3,if the intensity of the electric field is 100v/m
30
Nov
Calculate the energy per unit volume of a medium of dielectric constant 3,if the intensity of the electric field is 100v/m Calculate the energy per unit volume of a medium of dielectric constant 3 if the intensity of the electric field is 100v/m November 30, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , [...]
Two positive point charges of 12 and 5 microcoulombs, are placed 10 cm apart in air. The work needed to bring them 4 cm closer is
30
Nov
Two positive point charges of 12 and 5 microcoulombs, are placed 10 cm apart in air. The work needed to bring them 4 cm closer is are placed 10 cm apart in air. The work needed to bring them 4 cm closer is Two positive point charges of 12 and 5 microcoulombs November 30, 2020 [...]