Cengage JEE Mains Physics by B.M Sharma
Under what conditions can the electric flux `phi_E` be found through a closed surface?
06
Dec
Under what conditions can the electric flux `phi_E` be found through a closed surface? Under what conditions can the electric flux `phi_E` be found through a closed surface? December 6, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 17 - Electric Charge and Field ,
Consider two concentric spherical surfaces S1 with radius a and S2 with radius 2a, both centered at the origin. There is a charge +q at the origin and there are no other charges. Compare the flux ϕ1 through S1 with the flux ϕ2 through S2.
06
Dec
Consider two concentric spherical surfaces S1 with radius a and S2 with radius 2a, both centered at the origin. There is a charge +q at the origin and there are no other charges. Compare the flux ϕ1 through S1 with the flux ϕ2 through S2. both centered at the origin. There is a charge +q [...]
In a certain region of space, there exists a uniform electric field of value 2×10^2kˆVm^−1. A rectangular coil of dimension 10cm×20cm is placed in the xy plane. The electric flux through the coil is
06
Dec
In a certain region of space, there exists a uniform electric field of value 2×10^2kˆVm^−1. A rectangular coil of dimension 10cm×20cm is placed in the xy plane. The electric flux through the coil is In a certain region of space there exists a uniform electric field of value 2×10^2kˆVm^−1. A rectangular coil of dimension 10cm×20cm [...]
The electric flux from a cube of edge l is ϕ. If an edge of the cube is made 2l and the charge enclosed is halved, its value will be :
06
Dec
The electric flux from a cube of edge l is ϕ. If an edge of the cube is made 2l and the charge enclosed is halved, its value will be : its value will be The electric flux from a cube of edge l is ϕ. If an edge of the cube is made 2l [...]
A thin metallic spherical shell contains a charge Q on its surface. A point charge q1 is placed at the centre of the shell and another charge q2 is placed outside the shell. All the three charges are positive. Then, the force on charge q1 is
06
Dec
A thin metallic spherical shell contains a charge Q on its surface. A point charge q1 is placed at the centre of the shell and another charge q2 is placed outside the shell. All the three charges are positive. Then, the force on charge q1 is Four point charge are placed at the corners of [...]
Charge on an originally uncharged conductor is separated by holding a positively charged rod very closely nearly, as in Fig. Assume that the induced negative charge on the conductor is equal to the positive charge q on the rod. Then, flux through surface S1 is
06
Dec
Charge on an originally uncharged conductor is separated by holding a positively charged rod very closely nearly, as in Fig. Assume that the induced negative charge on the conductor is equal to the positive charge q on the rod. Then, flux through surface S1 is as in Fig. Assume that the induced negative charge on [...]
A metallic shell has a point charge q kept inside its cavity. Which one of the following diagrams correctly represents the electric lines of forces?
06
Dec
A metallic shell has a point charge q kept inside its cavity. Which one of the following diagrams correctly represents the electric lines of forces? A metallic shell has a point charge q kept inside its cavity. Which one of the following diagrams correctly represents the electric lines of forces? December 6, 2020 Category: Cengage [...]
A and B are two points on the axis and the perpendicular bisector, respectively, of and electric dipole. A and B are far away from the dipole and at equal distance from it. The fields at A and B are E→A and E→B. Then
06
Dec
A and B are two points on the axis and the perpendicular bisector, respectively, of and electric dipole. A and B are far away from the dipole and at equal distance from it. The fields at A and B are E→A and E→B. Then A and B are two points on the axis and the [...]
Three identical point charges, each of mass m and charge q, hang from three strings as shown in fig. The value of q in term of m, L, and q is
06
Dec
Three identical point charges, each of mass m and charge q, hang from three strings as shown in fig. The value of q in term of m, L, and q is and q is each of mass m and charge q hang from three strings as shown in fig. The value of q in term [...]
Two charges q1 and q2 are kept on x-axis and electric field at different points an x-axis is plotted against x. Choose correct statement about nature and magnitudes of q1 and q2
06
Dec
Two charges q1 and q2 are kept on x-axis and electric field at different points an x-axis is plotted against x. Choose correct statement about nature and magnitudes of q1 and q2 Two charges q1 and q2 are kept on x-axis and electric field at different points an x-axis is plotted against x. Choose correct [...]