A square surface of side $$L$$ (metre) in the plane of the paper is placed in a uniform electric field $$E$$ (volt/m) acting along the same plane at an angle θ with the horizontal side of the square as shown in the figure. The electric flux linked to the surface in the unit of V-m is:

 1 $$EL^{2}$$ 2 $$EL^{2} cos\theta$$ 3 $$EL^{2} sin\theta$$ 4 $$0$$
Subtopic:  Electric Field |
74%
From NCERT
AIPMT - 2010
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The mean free path of electrons in a metal is $$4\times 10^{-8}~\text{m}$$. The electric field which can give an average of $$2~\text{eV}$$ energy to an electron in the metal will be in units of Vm-1:
1. $$8\times 10^{7}$$
2. $$5\times 10^{-11}$$
3. $$8\times 10^{-11}$$
4. $$5\times 10^{7}$$
Subtopic:  Electric Field |
From NCERT
AIPMT - 2009
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A thin conducting ring of radius $$R$$ is given a charge $$+Q.$$ The electric field at the centre O of the ring due to the charge on the part AKB of the ring is $$E.$$ The electric field at the centre due to the charge on the part ACDB of the ring is:

1. $$3E$$ along KO
2. $$E$$ along OK
3. $$E$$ along KO
4. $$3E$$ along OK

Subtopic:  Electric Field |
75%
From NCERT
AIPMT - 2008
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
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To view explanation, please take trial in the course.
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