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A point charge of + 10 mu c is at a dist...

A point charge of + `10 mu c` is at a distance of 5 cm directly above the centre of a square of side 10 cm as shown in figure. What is the electric flux through the square?

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A point charge +10 muC is a distance 5cm directly above the centre of a square of side 10cm as shown in the figure. What is the magnitude of the electric flux through the square? [Hint: Think of the square as one face of cube with edge 10cm]. '(##VPU_HSS_PHY_XII_CO1_E02_018_Q01##)'

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Knowledge Check

  • Two point charges q_(1)=2C and q_(2)=1C are placed at distance b=1 cm and a=2 cm from the origin on the y and x axes as shown in figure. The electric field vector at point P (a, b) will subtend an angle theta with the X-axis given by,

    A
    `tantheta=4`
    B
    `tantheta=1`
    C
    `tantheta=3`
    D
    `tantheta=2`

  • Four spheres , each of mass M and radius r, are situated at the four corners of a square of side R, as shown in figure. The moment of inertia of the system about an axis perpendicular to the plane of square and passing through its centre will be

    A
    `(5M(4r^2+5R^2))/2`
    B
    `(2M(4r^2+5R^2))/5`
    C
    `(5M(4R^2+5r^2))/2`
    D
    `(2M(4R^2+5r^2))/5`

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    A point charge of 2muC is placed at the centre of a cubic Gaussian surface of side 0.5 cm. What is the net flux through the surface? (Given varepsilon_0 , = 8.85x 10^-12C^2 /N/M^2 )

    A pair of equal and opposite charges sepa-rated by a small vector distance forms an electric dipole:- An electric dipole consisting of charges +20 mu C and -20 mu C separated by 2 mm is placed inside a cubi-cal box of side 10 cm. What is net electric flux passing though the box?

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    A wire is bent in a circle of radius 10cm. It is given a charge of 250µC which spreads on it uniformly. What is the electric potential at the centre?

    Suppose that each side of the square in the picture has length 12 cm . What is the area of the shaded part?

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