PHYSICS 1B Chapter 21: Electric Charges and the Electric Field
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Of (cid:15482) surface charge density co) = of. * the total electric field at a point p is the vector sum of the fields at p dueto each point charge in the charge distribution . i. A electrical dipole : a pair of equal charges separated by a small distance . Electric field produced is known as dipole field . Electric dipole moment : vector qty . used to measure strength of an electric dipole feed an (cid:15482) direction of dipole moment is from negative to positive. Electric field intensity due to an electric dipole cantal line) = ytzeoheya, r >> a f = 2ki. = lee (cid:15482)to rep on an electric dipole in a uniform electric field. Torque = electric force x t distance between the line of action offres. Direction of torque is t and into plate containing p and e .
