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Earth's Magnetism

II73. An elec...

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II73. An electric dipole coincides on Z-axis and its mid-pointis on origin of the coordinates system. The electric fieldat an axial point at a distance z from origin is E andelectric field at an equatorial point at a distance y fromE'(z)origin is Ev). Here, z = y >> a, soE(z)/E(y) =.?

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Q. An electric dipole coincides on the z-axis and its centre coincides with the origin of the cartesian coordinate system. The electric field at an axial point at a distance

z

from the origin is

E (z)

and the electric field at an equatorial point at a distance

y

from the origin is

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y = z >> a

, which is true?

Q. An electric dipole coincides on the z-axis and its centre coincides with the origin of the cartesian coordinate system. The electric field at an axial point at a distance

z

from the origin is

E (z)

and the electric field at an equatorial point at a distance

y

from the origin is

E (y)

y = z >> a

\frac{E (z)}{E (y)}

Q. Two opposite charges each of magnitude

2 μ C

1 c m

apart. Find a electric field at a distance of

5 c m

from the mid-point on axial line of the dipole. Also find the field on equatorial line at the same distance from mid-point.

_{a x}

_{e q}

represents electric field at a point on the axial and equatorial line of a dipole. If points are at a distance

r

from the centre of the dipole, for

r ≫ a

:

Q. The electric field due to an electric dipole at a distance

r

from its center on the axial line is

E

. If the dipole is rotated through an angle of

90^{\circ}

about its perpendicular axis, electric field at the same point will be

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