AIEEE 2006 | Electrostatics Question 203 | Physics

Two spherical conductors $$A$$ and $$B$$ of radii $$1$$ $$mm$$ and $$2$$ $$mm$$ are separated by a distance of $$5$$ $$cm$$ and are uniformly charged. If the spheres are connected by a conducting wire then in equilibrium condition, the ratio of the magnitude of the electric fields at the surfaces of spheres $$A$$ and $$B$$ is

$$4:1$$

$$1:2$$

$$2:1$$

$$1:4$$

AIEEE 2006

MCQ (Single Correct Answer)

-1

An electric dipole is placed at an angle of $${30^ \circ }$$ to a non-uniform electric field. The dipole will experience

a translation force only in the direction of the field

a translation force only in a direction normal to the direction of the field

a torque as well as a translational force

a torque only

AIEEE 2005

MCQ (Single Correct Answer)

-1

Two point charges $$+8q$$ and $$-2q$$ are located at $$x=0$$ and $$x=L$$ respectively. The location of a point on the $$x$$ axis at which the net electric field due to these two point charges is zero is

$${L \over 4}$$

$$2$$ $$L$$

$$4$$ $$L$$

$$8$$ $$L$$

AIEEE 2005

MCQ (Single Correct Answer)

-1

Two thin wire rings each having a radius $$R$$ are placed at a distance $$d$$ apart with their axes coinciding. The charges on the two rings are $$+q$$ and $$-q.$$ The potential difference between the centres of the two rings is

$${q \over {2\pi \,{ \in _0}}}\left[ {{1 \over R} - {1 \over {\sqrt {{R^2} + {d^2}} }}} \right]$$

$${{qR} \over {4\pi \,{ \in _0}\,{d^2}}}$$

$${q \over {4\pi \,{ \in _0}}}\left[ {{1 \over R} - {1 \over {\sqrt {{R^2} + {d^2}} }}} \right]$$

zero

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