Physics - Electrostatics Question with Solution | TestHub

PhysicsElectrostaticsElectric Field & ForceEasy2 minPYQ_2018

PhysicsEasysingle choice

A copper rod of cross-sectional area A carries a uniform current I through it. At temperature T, if the volume charge density of the rod is $ρ$ , how long will the charges take to travel a distance $d$ ?

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Answer:

Solution:

Charge density $ρ = \frac{charge}{volume} = \frac{q}{A d} \Rightarrow q = ρ A d Also, q = I T \Rightarrow T = \frac{q}{I} = \frac{ρ A d}{I}$

Stream:JEESubject:PhysicsTopic:ElectrostaticsSubtopic:Electric Field & Force

⏱ 2mℹ️ Source: PYQ_2018

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