JEE Main 2015PhysicsCurrent ElectricityMediumMCQ

JEE Main 2015 — Current Electricity Question with Solution

JEE Main 2015 (10 Apr Online)

Question

Suppose the drift velocity vd in a material varied with the applied electric field E as vd ∝E. Then V-I graph for a wire made of such a material is best given by:

Choose an option

Show full solutionCorrect option: C
Correct answer
C

Step-by-step explanation

We know that vd=kE and I=n e A vd, 

⇒I=n eA kE∵E=Vd⇒I=neAk Vd
⇒I∝V⇒V ∝I2. So, 

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About this question

This is a previous-year question from JEE Main 2015, covering the Current Electricity chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.