1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A dipole of dipole moment $$\overrightarrow p$$ is placed in uniform electric field $$\overrightarrow E$$ then torque acting on it is given by
A
$$\overrightarrow \tau = \overrightarrow p .\overrightarrow E$$
B
$$\overrightarrow \tau = \overrightarrow p \times \overrightarrow E$$
C
$$\overrightarrow \tau = \overrightarrow p + \overrightarrow E$$
D
$$\overrightarrow \tau = \overrightarrow p - \overrightarrow E$$
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A charge Q$$\mu$$C is placed at the centre of a cube, the flux coming out from each face will be
A
$${Q \over {6{\varepsilon _0}}} \times {10^{ - 6}}$$
B
$${Q \over {6{\varepsilon _0}}} \times {10^{ - 3}}$$
C
$${Q \over {24{\varepsilon _0}}}$$
D
$${Q \over {8{\varepsilon _0}}}$$
3
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
A charge Q is situated at the corner of a cube, the electric flux passed through all the six faces of the cube is
A
$${Q \over {6{\varepsilon _0}}}$$
B
$${Q \over {8{\varepsilon _0}}}$$
C
$${Q \over {{\varepsilon _0}}}$$
D
$${Q \over {2{\varepsilon _0}}}$$
4
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Electric field at centre O of semicircle of radius $$a$$ having linear charge density $$\lambda$$ given as

A
$${{2\lambda } \over {{\varepsilon _0}a}}$$
B
$${{\lambda \pi } \over {{\varepsilon _0}a}}$$
C
$${\lambda \over {2\pi {\varepsilon _0}a}}$$
D
$${\lambda \over {\pi {\varepsilon _0}a}}$$
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