Advertisements
Advertisements
प्रश्न
An electric dipole of moment p is placed parallel to the uniform electric field. The amount of work done in rotating the dipole by 90° is ____________.
पर्याय
2pE
pE
pE/2
Zero
MCQ
रिकाम्या जागा भरा
उत्तर
An electric dipole of moment p is placed parallel to the uniform electric field. The amount of work done in rotating the dipole by 90° is pE.
Explanation:
`"W = pE" ("cos" theta_1 - "cos" theta_2)`
`theta_1 = 0^circ`
`theta_2 = 90^circ`
`"W = pE" ("cos" 0^circ - "cos" 90^circ)`
`= "pE" (1 - 0) = "pE"`
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
