1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
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

AIPMT 2008 Physics - Electrostatics Question 40 English
A
E along KO
B
3E along OK
C
3E along KO
D
E along OK
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Charges +q and $$-$$q are placed at points A and B respectively which are a distance 2L apart, C is the midnight between A and B. The work done in moving a charge + Q along the semicircle CRD is

AIPMT 2007 Physics - Electrostatics Question 37 English
A
$${{qQ} \over {2\pi {\varepsilon _0}L}}$$
B
$${{qQ} \over {6\pi {\varepsilon _0}L}}$$
C
$$-$$ $${{qQ} \over {6\pi {\varepsilon _0}L}}$$
D
$${{qQ} \over {4\pi {\varepsilon _0}L}}$$
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A hollow cylinder has a charge q coulomb within it. If $$f$$ is the electric flux in units of voltmeter associated with the curved surface B, the flux linked with the plane surface A in units of V-m will be

AIPMT 2007 Physics - Electrostatics Question 38 English
A
$${q \over {2{\varepsilon _0}}}$$
B
$${\phi \over 3}$$
C
$${q \over {{\varepsilon _0}}} - \phi $$
D
$${1 \over 2}\left( {{q \over {{\varepsilon _0}}} - \phi } \right)$$
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
Three point charges +q, $$-$$ 2q and + q are placed at points (x = 0, y = a, z = 0), (x = 0, y = 0, z = 0) and (x = $$a$$, y = 0, z = 0) respectively. The magnitude and direction of the electric dipole moment vector of this charge assembly are
A
$$\sqrt 2 qa$$ along the line joining points (x = 0, y = 0, z = 0) and (x = $$a$$, y = a, z = 0)
B
q$$a$$ along the line joining points (x = 0, y = 0, z = 0) and (x = $$a$$, y = a, z = 0)
C
$$\sqrt 2 qa$$ along +x direction
D
$$\sqrt 2 qa$$ along +y direction.
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