| ⇦ | 
| ⇨ |
An electric dipole of moment p is lying along a uniform electric field E. The work done in rotating the dipole by 90° is
Options
(a) pE
(b) √2 pE
(c) pE / 2
(d) 2pE
Correct Answer:
pE
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - Monochromatic radiation emitted when electron on hydrogen atom
- In Raman effect, Stoke’s lines are spectral lines having
- Sodium has body centred packing. Distance between two nearest atoms is 3.7 Å.
- A spring has time period T. It is cut into n equal parts. The time period of each part
- A mixture consists of two radioactive materials A₁ and A₂ with half lives of 20s
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Monochromatic radiation emitted when electron on hydrogen atom
- In Raman effect, Stoke’s lines are spectral lines having
- Sodium has body centred packing. Distance between two nearest atoms is 3.7 Å.
- A spring has time period T. It is cut into n equal parts. The time period of each part
- A mixture consists of two radioactive materials A₁ and A₂ with half lives of 20s
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
As Work done =∆U
∆pE=U(final) -U(intial)
As U=-PECOSθ
Ui=-PECOS0°=-PE
Uf=-pECOS90°=0 As cos90=0
So workdone =Uf -Ui
Workdone=0-(-PE)
Workdone=PE