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The electric intensity due to dipole of ...

The electric intensity due to dipole of length 10 cm and having a charge of `500muC`, at a point on the axis 20 cm from one of the charges in air is

A

`9.28 times10^7` N/C

B

`20.5times10^7` N/C

C

`6.25 times 10^7` N/C

D

`13.1times 10^8` N/C

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Each of two concentric spheres of radii 5 cm and 10 cm are given a charge of 10 mu C . (i) The electric potential at a point situated at a distance of 2.5 cm from the centre is

    A
    `27 xx 10^(5) V`
    B
    `0 V`
    C
    `16.5 xx 10^(5) V`
    D
    `24.2 xx 10^(4) V`

  • Each of two concentric spheres of radii 5 cm and 10 cm are given a charge of 10 mu C . (ii) The electric potential at a point situated at a distance of 8 cm from the centre is

    A
    `10.52 xx 10^(4) V`
    B
    `20.25 xx 10^(5) V`
    C
    `32.24 xx 10^(5) V`
    D
    `42.28 xx 10^(5) V`

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    The electric field due to a small dipole of length 2l at distance r ( rgtgtl) from the centre of the dipole on the axial line is E. What is the distance of the point on the perpendicular bisector of the dipole from its centre in which the electric field intensity is E ?

    A negative charge of 30 esu is at a distance of 30 cm from a positive charge of 20 esu. What is the potential at a point 10 cm from the first charge on the line joining the two charges? Where will the potential be zero?

    A spherical shell of radius 20 cm has 20 mu C charge placed in vacuum. Calculate the electric field intensity (i) at a distance of 15 cm and (ii) at a distance of 40 cm from the centre of the spherical shell.

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    A spherical shell of radius 10 cm has 10muC charge. Calculate the electric field intensity (i) at a distance of 5 cm and (ii) at a distance of 30 cm from the centre of the spherical shell.

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