| ⇦ | 
| ⇨ |
An electric dipole of moment ‘p’ is placed in an electric field of intensity ‘E’. The dipole acquires a position such that the axis of the dipole makes an angle θ with the direction of the field. Assuming that the potential energy of the dipole to be zero when = 90⁰, the torque and the potential energy of the dipole will respectively be:
Options
(a) p E sin θ, – p E cos θ
(b) p E sin θ, – 2 p E cos θ
(c) p E sin θ, p E cos θ
(d) p E cos θ, – p E sin θ
Correct Answer:
p E sin θ, – p E cos θ
Explanation:
The torque on the dipole is given as ? = p E sin θ. The potential energy of otghe dipole in the electric field is given as U = – p E cos θ.
Related Questions: - A vertical spring with force constant k is fixed on a table. A ball of mass
- The magnetic susceptibility is negative for
- A nucleus with mass number 220 initially at rest emits an α-particle. If the Q-value
- Bragg’s law for X-rays is
- In Bohr model of hydrogen atom, the force on the electron depends on the principal
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A vertical spring with force constant k is fixed on a table. A ball of mass
- The magnetic susceptibility is negative for
- A nucleus with mass number 220 initially at rest emits an α-particle. If the Q-value
- Bragg’s law for X-rays is
- In Bohr model of hydrogen atom, the force on the electron depends on the principal
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply