A dipole of dipole moment P = 3.5 × 10 inverse 15 Cm is placed in a uniform electric field E = 2.0 × 10 to the power 4 NC inverse 1. The dipole makes an angle of 60° with the field.Calculate the (a) Potential energy of the dipole and (b) the torque on the dipole.
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potential energy of a dipole in uniform electric field = -pEcos(a)
=- 3.5*10^-15 *2*10^-4 *cos60°
=-3.5 * 10^-19
torque = pE sin(a)
=- 3.5*10^-15 *2*10^-4*sin60°
=-3.5√3 * 10^-19
=- 3.5*10^-15 *2*10^-4 *cos60°
=-3.5 * 10^-19
torque = pE sin(a)
=- 3.5*10^-15 *2*10^-4*sin60°
=-3.5√3 * 10^-19
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