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Question: Answered & Verified by Expert
A cone of base radius $R$ and height $h$ is located in a uniform electric field $\overrightarrow{\mathrm{E}}$ parallel to its base. The electric flux entering the cone is:
PhysicsElectrostaticsJEE MainJEE Main 2014 (11 Apr Online)
Options:
  • A
    $\frac{1}{2} \mathrm{EhR}$
  • B
    EhR
  • C
    $2 \mathrm{EhR}$
  • D
    $4 \mathrm{EhR}$
Solution:
2030 Upvotes Verified Answer
The correct answer is:
EhR
Electric flux, $\phi=E(d s) \cos \theta$ $=E(h R) \cos 0^{\circ}=E h R$

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