Cengage JEE Mains Physics by B.M Sharma
The electric field in a region is given by E→=(A/x3)i^ An expression for the potential in the region assuming the potential at infinity to be zero is
30
Nov
The electric field in a region is given by E→=(A/x3)i^ An expression for the potential in the region assuming the potential at infinity to be zero is The electric field in a region is given by E→=(A/x3)i^ An expression for the potential in the region assuming the potential at infinity to be zero is November [...]
The potential at a point x (measured in m) due to some charges situated on the x-axis is given by V(x) = (20 /x^2- 4) volts. The electric field E at x=4 um is given by :
30
Nov
The potential at a point x (measured in m) due to some charges situated on the x-axis is given by V(x) = (20 /x^2- 4) volts. The electric field E at x=4 um is given by : The potential at a point x (measured in m) due to some charges situated on the x-axis is [...]
Two point charges +5 uc and -2 uc are kept at a distance of 1 m is free space. The distance between the two zero potential points on the line joining the charges is
30
Nov
Two point charges +5 uc and -2 uc are kept at a distance of 1 m is free space. The distance between the two zero potential points on the line joining the charges is Two point charges +5 uc and -2 uc are kept at a distance of 1 m is free space. The distance [...]
Two charges +6μC and −4μC are placed 15 cm apart as shown. At what distance from A to its right the electrostatic potential is zero (distances in cm) ?
30
Nov
Two charges +6μC and −4μC are placed 15 cm apart as shown. At what distance from A to its right the electrostatic potential is zero (distances in cm) ? Two charges +6μC and −4μC are placed 15 cm apart as shown. At what distance from A to its right the electrostatic potential is zero (distances [...]
A charge Q is distributed over two concentric hollow spheres of radii a and b (a>b), so that the surface charge densities are equal. The potential at the common centre is 1/4π∈0 times
30
Nov
A charge Q is distributed over two concentric hollow spheres of radii a and b (a>b), so that the surface charge densities are equal. The potential at the common centre is 1/4π∈0 times A charge Q is distributed over two concentric hollow spheres of radii a and b (a>b) so that the surface charge densities [...]
A thin glass rod is bent into a semi-circle of radius R . A charge +Q is uniformly distributed along the upper half and a charge −Q is uniformly distributed along the lower half as shown in figure. Calculate the the electric field E at P the centre of the semi-circle is
30
Nov
A thin glass rod is bent into a semi-circle of radius R . A charge +Q is uniformly distributed along the upper half and a charge −Q is uniformly distributed along the lower half as shown in figure. Calculate the the electric field E at P the centre of the semi-circle is The flux of [...]
A wire, of length L(=10cm), is bent into a semi-circular arc. If the two equal halves, of the arc, were each to be uniformly charged with charges ±Q,[|Q|=10^6 ε0 Coulomb where ε0 is the permittivity (in SI units) of free space. The net electric field at the centre O of the semi-circular arc would be :
30
Nov
A wire, of length L(=10cm), is bent into a semi-circular arc. If the two equal halves, of the arc, were each to be uniformly charged with charges ±Q,[|Q|=10^6 ε0 Coulomb where ε0 is the permittivity (in SI units) of free space. The net electric field at the centre O of the semi-circular arc would be [...]
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[|Q|=10^6 ε0 Coulomb where ε0 is the permittivity (in SI units) of free space. The net electric field at the centre O of the semi-circular arc would be : ,
A wire ,
is bent into a semi-circular arc. If the two equal halves ,
of length L(=10cm) ,
of the arc ,
were each to be uniformly charged with charges ±Q ,
An infinite sheet carrying a uniform surface charge density σ lies on the xy−plane. The work done to carry a charge q from the point A = a(i^+2j^+3k^) to the point B = a(i^−2j^+6k^) (where a is a constant with the dimension of length and ε0 is the permittivity of free space) is
30
Nov
An infinite sheet carrying a uniform surface charge density σ lies on the xy−plane. The work done to carry a charge q from the point A = a(i^+2j^+3k^) to the point B = a(i^−2j^+6k^) (where a is a constant with the dimension of length and ε0 is the permittivity of free space) is The flux [...]
A square surface of side L metres is in the plane of the paper. A uniform electric field E⃗ (volt/m), also in the plane of the paper, is limited only to the lower half of the square surface (see figure). What is the electric flux in SI units associated with the surface is
30
Nov
A square surface of side L metres is in the plane of the paper. A uniform electric field E⃗ (volt/m), also in the plane of the paper, is limited only to the lower half of the square surface (see figure). What is the electric flux in SI units associated with the surface is A square [...]
the surface density of conducting sphere is 7.7 into 10 to the power minus 10 coulomb per metre square and electric field intensity at a distance of 4 m from the centre of the sphere is 2 into 10 to the power minus 2 volt metre find the radius of the sphere assuming the sphere to be vacuum.
30
Nov
the surface density of conducting sphere is 7.7 into 10 to the power minus 10 coulomb per metre square and electric field intensity at a distance of 4 m from the centre of the sphere is 2 into 10 to the power minus 2 volt metre find the radius of the sphere assuming the sphere [...]