JEE Main 2026 — Capacitance Question with Solution
JEE Main 2026 (02 April Shift 1)
Question
The dimensional formula of ( = permittivity of vacuum and = electric field) is . The value of _______.
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
The quantity represents the energy density of an electric field.
Energy density is defined as energy per unit volume.
Dimensional formula of energy is .
Dimensional formula of volume is .
Dimensional formula of energy density .
Comparing this with , we get:
The value of .
Answer:
Energy density is defined as energy per unit volume.
Dimensional formula of energy is .
Dimensional formula of volume is .
Dimensional formula of energy density .
Comparing this with , we get:
The value of .
Answer:
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This is a previous-year question from JEE Main 2026, covering the Capacitance 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.