The electric field at the equator of a dipole is $$E.$$ If the strength of the dipole and distance are now doubled, then the electric field will be:

 1 $$E/2$$ 2 $$E/8$$ 3 $$E/4$$ 4 $$E$$
Subtopic:  Electric Dipole |
66%
From NCERT
AIPMT - 1998
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A point $$Q$$ lies on the perpendicular bisector of an electric dipole of dipole moment $$p.$$ If the distance of $$Q$$ from the dipole is $$r$$ (much larger than the size of the dipole), then the electric field at $$Q$$ is proportional to:
1. $$p^{2}$$ and $$r^{-3}$$
2. $$p$$ and $$r^{-2}$$
3. $$p^{-1}$$ and $$r^{-2}$$
4. $$p$$ and $$r^{-3}$$

Subtopic:  Electric Dipole |
86%
From NCERT
AIPMT - 1998
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A dipole of moment $\stackrel{\to }{p}$ is placed in uniform electric field $\stackrel{\to }{E}$. The torque acting on it is given by:
1. $$\vec{\tau }=\vec{p}.\vec{E}$$
2. $$\vec{\tau }=\vec{p} \times\vec{E}$$
3. $$\vec{\tau }=\vec{p}+\vec{E}$$
4. $$\vec{\tau }=\vec{p}-\vec{E}$$

Subtopic:  Electric Dipole |
90%
From NCERT
AIPMT - 2001
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