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If E(alpha) be the electric field streng...

If `E_(alpha)` be the electric field strength of a short dipole at a point on its axial line and `E_(e)` that on the equatorial line at the same distance, then

A

`E_(e)=2E_(alpha)`

B

`E_(alpha)=2E_(e)`

C

`E_(alpha)=E_(e)`

D

none of these

Text Solution

Verified by Experts

We know that, electric field strength at axial line,
`E_(a)=(2kp)/(r^(3))`
and electric field strength at equatorial line,
`E_(e)=(kp)/(r^(3))`
`therefore E_(a)=2E_(e)`
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Knowledge Check

  • If E_(a) be the electric field strength of a short dipole at a point on its axisal line and E_(e) that on the equatorial line at the same distance, then

    A
    `E_(e)=2E_(a)`
    B
    `E_(a)=2E_(e)`
    C
    `E_(a)=E_(e)`
    D
    None of these

  • Magnetic field strength due to a short bar magnet on its axial line at a distance x is B. What is its value at the same distance on the equatorial line ?

    A
    `B/2`
    B
    B
    C
    2 B
    D
    4 B

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