Free physics question bank

electric flux and gauss law questions with solutions

Practice Electrostatics for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.

Showing 1–10 of 38 questions

  • MCQeasyElectrostatics

    Five charges +q, +5q, –2q, +3q and –4q are situated as shown in the figure. The electric flux due to this configuration through the surface S is :

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    JEE Mains 2024 09 Apr Evening Shift

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  • MCQmediumElectrostatics

    A non-conducting solid sphere has uniform volume charge density ρ. A spherical cavity is carved out whose centre is displaced from the original sphere's centre by a vector d. The cavity lies completely inside the original sphere. The electric field at every point inside the cavity is:

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  • MCQmediumElectrostatics

    Two point charges 2q and q are placed at vertex A and centre of face CDEF of the cube as shown in figure. The electric flux passing through the cube is :

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    JEE Mains 202623 January Morning Shift

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  • MCQmediumElectrostatics

    A charge q is placed at the center of one of the surface of a cube. The flux linked with the cube is:

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    JEE Mains 2024 04 Apr Evening Shift

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  • MCQdifficultElectrostatics

    In an insulating medium of dielectric constant 1, ρ(y) = by, where b>0. The electric field is zero at y=0 and everywhere is directed along the y-axis. The electric field is:

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  • NumericmediumElectrostatics

    An electric field, E = (2î + 6ĵ + 8k̂)/√6 passes through the surface of 4 m² area having unit vector n̂ = (2î + ĵ + k̂)/√6. The electric flux for that surface is _________ V m.

    JEE Mains 2024 08 Apr Morning Shift

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  • NumericmediumElectrostatics

    Three infinitely long charged thin sheets are placed as shown in figure. The magnitude of electric field at the point P is xσ/ε₀. The value of x is _________ (all quantities are measured in SI units).

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    JEE Mains 2024 06 Apr Morning Shift

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  • MCQeasyElectrostatics

    A solid non-conducting sphere of radius R has charge density ρ(r)=ρ₀(1-r/R). The total charge of the sphere is:

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  • MCQmediumElectrostatics

    A non-conducting sphere of radius R has volume charge density ρ(r)=ρ₀(r/R). At what point strictly inside the sphere is the electric field equal in magnitude to the field just outside its surface?

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  • NumericmediumElectrostatics

    An electric field E = (2xî) N C⁻¹ exists in space. A cube of side 2m is placed in the space as per figure given below. The electric flux through the cube is ______ N m²/C.

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    JEE Mains 2024 09 Apr Evening Shift

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