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Physics - Electrostatics Question with Solution | TestHub

PhysicsElectrostaticsMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

If $V$ and $u$ are electric potential and energy density, respectively, at a distance $r$ from a positive point charge, then which of the following graphs is correct?

Options:

Answer:

Solution:

$V = \frac{kQ}{r}$

we know that,

$u = \frac{1}{2} ε_{0} E^{2} = \frac{1}{2} \frac{ε_{0} k^{2} Q^{2}}{r^{4}}$

$∴$ $V^{4} \propto u$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:ElectrostaticsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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