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Dielectrics Dielectrics are insulating (non-conducting) materials that can produce electric effect without conduction. Movement of free charges is not possible in a dielectric, so they behave differently.When a dielectric material is kept in an electric field, then the external field induces dipole moment. Due to which, net charges on the surface of the dielectric appears.The SI unit of dielectric strength

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

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Dielectrics Dielectrics are insulating (non-conducting) materials that can produce electric effect without conduction. Movement of free charges is not possible in a dielectric, so they behave differently.When a dielectric material is kept in an electric field, then the external field induces dipole moment. Due to which, net charges on the surface of the dielectric appears.Which of the following is/are the examples of non-polar

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

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Proton in an Electric Field Potential difference `(DeltaV)` between two points `A and B` separated by a distance `x`, in a uniform electric field `E` is given by `DeltaV =-Ex`, where `x` is measured parallel to the field lines. If a charge `q_0` moves from A to B, the change in potential energy `(DeltaU)` is given as `DeltaU=q_0 DeltaV`. A proton is released from rest in uniform electric field of magnitude `8.0 xx 10^4 Vm^(-1)` directed along the positive X-axis. The proton undergoes a displacement of 0.50 m in the direction of E.Mass of a proton `= 1.66 xx 10^(-27)

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

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Proton in an Electric Field Potential difference `(DeltaV)` between two points `A and B` separated by a distance `x`, in a uniform electric field `E` is given by `DeltaV =-Ex`, where `x` is measured parallel to the field lines. If a charge `q_0` moves from A to B, the change in potential energy `(DeltaU)` is given as `DeltaU=q_0 DeltaV`. A proton is released from rest in uniform electric field of magnitude `8.0 xx 10^4 Vm^(-1)` directed along the positive X-axis. The proton undergoes a displacement of 0.50 m in the direction of E.Mass of a proton `= 1.66 xx 10^(-27)

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

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Proton in an Electric Field Potential difference `(DeltaV)` between two points `A and B` separated by a distance `x`, in a uniform electric field `E` is given by `DeltaV =-Ex`, where `x` is measured parallel to the field lines. If a charge `q_0` moves from A to B, the change in potential energy `(DeltaU)` is given as `DeltaU=q_0 DeltaV`. A proton is released from rest in uniform electric field of magnitude `8.0 xx 10^4 Vm^(-1)` directed along the positive X-axis. The proton undergoes a displacement of 0.50 m in the direction of E.Mass of a proton `= 1.66 xx 10^(-27)

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

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Proton in an Electric Field Potential difference `(DeltaV)` between two points `A and B` separated by a distance `x`, in a uniform electric field `E` is given by `DeltaV =-Ex`, where `x` is measured parallel to the field lines. If a charge `q_0` moves from A to B, the change in potential energy `(DeltaU)` is given as `DeltaU=q_0 DeltaV`. A proton is released from rest in uniform electric field of magnitude `8.0 xx 10^4 Vm^(-1)` directed along the positive X-axis. The proton undergoes a displacement of 0.50 m in the direction of E.Mass of a proton `= 1.66 xx 10^(-27)

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

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Proton in an Electric Field Potential difference `(DeltaV)` between two points `A and B` separated by a distance `x`, in a uniform electric field `E` is given by `DeltaV =-Ex`, where `x` is measured parallel to the field lines. If a charge `q_0` moves from A to B, the change in potential energy `(DeltaU)` is given as `DeltaU=q_0 DeltaV`. A proton is released from rest in uniform electric field of magnitude `8.0 xx 10^4 Vm^(-1)` directed along the positive X-axis. The proton undergoes a displacement of 0.50 m in the direction of E.Mass of a proton `= 1.66 xx 10^(-27)

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

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The current in a wire varies with time according to the equation `i=4+ 2t`, where `i` is in ampere and `t` is in second. The quantity of charge which passes through a cross-section of the wire during the time `t= 2 s` to `t = 6 s`

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

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How many electrons pass through a lamp in 1 min, if the current is `300 mA`? Given, the charge on an electron is `1.6 xx 10^(-19)

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

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The plot represents the flow of current through a wire at three different timesThe ratio of charges flowing through the wire at different times

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Drift velocity `v_d` varies with the intensity of electric field as per the

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A metal wire is subjected to a constant potential difference. When the temperature of the metal wire increases, then the drift velocity of the electron in

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The drift velocity of the electrons in a copper wire of length 2 m under the application of a potential difference of `220 V` is `0.5 ms^(-1)`. Their mobility (in `m^2 V^(-1)

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If charges move without collisions through the conductor, their kinetic energy would also change, so that the total energy

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Graph showing the variation of current versus voltage for a material GaAs is shown in the figure .Identify the region, where Ohm’s law is obeyed.

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Ohm’s law in point form in field theory can be expressed

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The variation between `V -i` for heating filament is shown by which

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The resistance of a wire is R ohm. If it is melted and stretched to `n` times its original length, its new resistance will

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If an ammeter in the given circuit shown in the diagram reads `2A`, the resistance `R`

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At room temperature `(27.0°C)` the resistance of a heating element is `100 Omega`. What is the temperature of the element, if the resistance is found to be `117 Omega`, given that the temperature coefficient of the material of the resistor is `1.70 xx

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

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