Electrostatic Potential and Capacitance - Result Question 18
20. An electric dipole has the magnitude of its charge as and its dipole moment is . It is placed in uniform electric field . If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively[2004]
(a)
(b)
(c)
(d) zero and
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Answer:
Correct Answer: 20. (d)
Solution:
- (d) When the dipole is in the direction of field then net force is
and its potential energy is minimum