1.

An electric dipole has the magnitude of its charge as q and its dipole moment is p. It is placed in a uniform electric field E. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively

Answer»

2QE and MINIMUM.
qЕ and PE.
zero and minimum.
qE and maximum.

Solution :When `vecp` is along the direction of electric FIELD `vecE`, the net force acting on the dipole is zero and its potential energy is minimum having a VALUE - pE.


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