If \(\oint_S \vec{E}\cdot d\vec{S}=0\) over a surface, then :
Electric flux and Gauss's law applications
Every question from past board papers on Electric flux and Gauss's law applications, newest paper first. Open any question for its full worked answer.
NEET UG 2023 question paper (official, booklet G6)
Full paper →NEET UG 2020 question paper (official, booklet E1)
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A spherical conductor of radius 10 cm has a charge of \(3.2\times10^{-7}\) C distributed uniformly. What is the magnitude of electric field at a point 15 cm from the centre of the sphere ?
\(\left(\frac{1}{4\pi\epsilon_0} = 9\times10^9\ \text{N m}^2/\text{C}^2\right)\)
NEET UG 2019 question paper (official, booklet P1)
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A hollow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the centre :