JEE Main 2014 — Electrostatics Question with Solution
JEE Main 2014 (12 Apr Online)
Question
A spherically symmetric charge distribution is characterised by a charge density having the following variations:
for
for
Where is the distance from the centre of the charge distribution is a constant. The electric field at an internal point is:
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
Let us consider a spherical shell of radius and thickness .
Charge on this shell Total charge in the spherical region from centre to is Electric field at
Charge on this shell Total charge in the spherical region from centre to is Electric field at
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This is a previous-year question from JEE Main 2014, covering the Electrostatics 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.