State the energy transformation in the following: (i) electricity is obtained from solar energy. (ii) electricity is obtained from wind energy. (iii) electricity is obtained from hydro energy. (iv) electricity is obtained from nuclear energy.
Electric displacement is given by D=epsilonE, here, epsilon= electric permittivity, E = electric field strength The dimensions of electric displacement are
Electric Dipole
Electric Field
Assertion: On going away from a point charge or a small electric dipole, electric field decreases at the same rate in both the cases Reason: Electric field is inversly proportional to square of distance from the charge or an electric dipole.
Assetrion: Electric lines of force never cross each other. Reason: Electric field at a point superimpose to give one resultant electric field
An electric dipole is placed in a uniform electric field. The net electric force on the dipole
Electric ______________ Helps in disconnecting a faulty electric circuit and thus, prevents an electric fire.
For the following electric field lines, the the electric field is
