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Physics - Electrostatics Question with Solution | TestHub

PhysicsElectrostaticsdipoleEasy2 minPYQ_2020

PhysicsEasysingle choice

An electric dipole is fixed at the origin of coordinates. Its moment is directed in the positive $x$ -direction. A positive charge is moved from the point $(r, 0)$ to the point $(- r, 0)$ by an external agent. In this process, the work done by the agent is -

Options:

Answer:

Solution:

The potential due to the dipole is positive at

$A (r, 0)$ and negative at $B (- r, 0)$ . Also this potential is inversely proportional to $r^{2}$ . Work is done by agent is also inversely proportional to r²

$W_{e x t . A \to B} = q (V_{B} - V_{A}) = - v e$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:ElectrostaticsSubtopic:dipole

⏱ 2mℹ️ Source: PYQ_2020

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