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Electric Dipole An electric dipole is a pair of point charges with equal magnitude and opposite in sign separated by a very small distance. The mid-point of locations of `-q and q` is called the centre of the dipole. The strength of an electric dipole is measured by a vector quantity known as electric dipole moment `(p)` which is the product of the charge `(q)` and separation between the charges `(2l)`.In most molecules, the centres of positive charges and of negative charges lie at the same place, hence their dipole moment is zero. `e.g. CO_2, CH_4`. However, they develop a

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Electric Dipole An electric dipole is a pair of point charges with equal magnitude and opposite in sign separated by a very small distance. The mid-point of locations of `-q and q` is called the centre of the dipole. The strength of an electric dipole is measured by a vector quantity known as electric dipole moment `(p)` which is the product of the charge `(q)` and separation between the charges `(2l)`.In most molecules, the centres of positive charges and of negative charges lie at the same place, hence their dipole moment is zero. `e.g. CO_2, CH_4`. However, they develop a

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Faraday Cage A Faraday cage or Faraday shield is an enclosure made of a conducting material. The fields within a conductor cancel out with any external fields, so the electric field within the enclosure is zero.These Faraday cages act as big hollow conductors. You can put things to shield them from electrical fields. Any electrical shocks the cage receives, pass harmlessly around the outside of the cage. Which of the following material can be used to make a Faraday

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Faraday Cage A Faraday cage or Faraday shield is an enclosure made of a conducting material. The fields within a conductor cancel out with any external fields, so the electric field within the enclosure is zero.These Faraday cages act as big hollow conductors. You can put things to shield them from electrical fields. Any electrical shocks the cage receives, pass harmlessly around the outside of the cage. Example of a real-world Faraday cage

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Faraday Cage A Faraday cage or Faraday shield is an enclosure made of a conducting material. The fields within a conductor cancel out with any external fields, so the electric field within the enclosure is zero.These Faraday cages act as big hollow conductors. You can put things to shield them from electrical fields. Any electrical shocks the cage receives, pass harmlessly around the outside of the cage. What is the electrical force inside a Faraday cage, when it is struck by

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Faraday Cage A Faraday cage or Faraday shield is an enclosure made of a conducting material. The fields within a conductor cancel out with any external fields, so the electric field within the enclosure is zero.These Faraday cages act as big hollow conductors. You can put things to shield them from electrical fields. Any electrical shocks the cage receives, pass harmlessly around the outside of the cage. An isolated point charge `+q` is placed inside the Faraday cage. Its surface must have charge equal

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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Faraday Cage A Faraday cage or Faraday shield is an enclosure made of a conducting material. The fields within a conductor cancel out with any external fields, so the electric field within the enclosure is zero.These Faraday cages act as big hollow conductors. You can put things to shield them from electrical fields. Any electrical shocks the cage receives, pass harmlessly around the outside of the cage. A point charge of 2C is placed at centre of Faraday cage in the shape of cube with surface of 9 cm edge. The number of electric field lines passing through the cube

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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A solid conducting sphere of radius a has a net positive charge 2Q. A conducting spherical shell of inner radius b and outer radius c is concentric with the solid sphere and has a net charge– Q.The surface charge density on the inner and outer surfaces of the spherical shell will be

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The surface charge density of a thin charged disc of radius R is σ. The value of the electric field at the centre of the disc is sigma/(2in_0)`. With respect to the field the centre, the electric field along the axis at a distance R from the centre of the disc reduces

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In the figure, the net electric flux through the area A is `phi=vecE.vecA` when the system is in air. On immersing the system in water the net electric flux through the

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An electric dipole is placed in a uniform electric field. The dipole will

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Figure shows two charges of equal magnitude separated by a distance 2a. As we move away from the charge situated at x = 0 to the charge situated at `x=2a`, which of the following graphs shows the correct behaviour of electric field

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An uniform electric field E exists along positive x-axis. The work done in moving a charge 0.5 C through a distance 2 m along a direction making an angle 60° with x-axis is 10 J. Then the magnitude of electric field

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An electric dipole is placed along the x-axis at the origin O. A point P is at a distance of 20 cm from this origin such that OP makes an angle T/3 with the x-axis. If the electric field at P makes an angle 0 with the x-axis, the value of 0 would

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A spherically symmetric charge distribution is characterised by a charge density having the following variations: `rho(r)=rho_o (1-r/R)` for `r < R rho(r)=0` for `r ge R` Where r is the distance from the centre of the charge distribution p, is a constant. The electric field at an internal point (r < R)

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A charge q is placed at the centre of the open end of a cylindrical vessel. The flux of the electric field through the surface of the vessel is

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A short electric dipole of dipole moment `vecp` is placed at a distance r from the centre of a solid metallic sphere of radius a

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A semi-circular arc of radius ‘a’ is charged uniformly and the charge per unit length is A. The electric field at the centre of this arc

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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A hollow cylinder has a charge q coulomb within it. If `phi` is the electric flux in units of voltmeter associated with the curved surface B, the flux linked with the plane surface A in units of voltmeter will

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A point Q lies on the perpendicular bisector of an electrical dipole of dipole moment p. If the distance of Q from the dipole is r(much larger than the size of the dipole), then the electric field at Q is proportional

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

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