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Electric Charges & Fields - 04
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Q1. Positive electric flux indicates that electric lines of force are directed
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1 point
(a) outwards
(b) inwards
(c) either (a) or (b)
(d) None of these
Q2. The S.I. unit of electric flux is
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1 point
newton per coulomb
joule per coulomb
volt × metre
weber
Q3. If the flux of the electric field through a closed surface is zero, then
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1 point
the electric field must be zero everywhere on the surface
the charge in the vicinity of the surface must be zero
the charge inside the surface must be zero
the electric field may not be zero everywhere on the surface
Q4. . Electric flux over a surface in an electric field may be
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1 point
+ve
-ve
zero
all the above
Q5.
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1 point
a
b
c
d
Q6. For distance far away from centre of dipole the change in magnitude of electric field with change in distance from the centre of dipole is
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1 point
zero.
more in case of equatorial plane of dipole as compared to axis of dipole
same in equatorial plane as well as axis of dipole.
more in case of axis of dipole as compared to equatorial plane of dipole
Q7. A region surrounding a stationary electric dipoles has
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1 point
magnetic field only
electric field only
both electric and magnetic fields
no electric and magnetic fields
Q8. The electric field at a point on equatorial line of a dipole and direction of the dipole moment
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1 point
will be parallel
will be in opposite direction
will be perpendicular
are not related
Q9. Debye is the unit of
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1 point
electric potential
electric field intensity
electric flux
electric dipole moment
Q10. An electric dipole will experience a net force when it is placed in
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1 point
(a) a uniform electric field
(b) a non-uniform electric field
(c) both (a) and (b)
(d) None of these
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