An electric dipole of dipole moment p → is placed in a uniform electric field E → such that p → is perpendicular to E → . The work done to turn the dipole through an angle of 180 o is

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Physics - Electrostatics Question with Solution | TestHub

PhysicsElectrostaticsdipoleEasy2 minPYQ_2020

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An electric dipole of dipole moment $\vec{p}$ is placed in a uniform electric field $\vec{E}$ such that $\vec{p}$ is perpendicular to $\vec{E}$ . The work done to turn the dipole through an angle of $180^{o}$ is

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Answer:

Solution:

$W = U_{f} - U_{i}$
$W = - p E \cos 270 ° - (- p E \cos 90 °)$
$W = 0$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:ElectrostaticsSubtopic:dipole

⏱ 2mℹ️ Source: PYQ_2020

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