1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
As per the diagram a point charge +q is placed at the origin O. Work done in taking another point charge $$-$$Q from the point A [coordinates (0, $$a$$)] to another point B

AIPMT 2005 Physics - Electrostatics Question 37 English
A
zero
B
$$\left( {{{qQ} \over {4\pi {\varepsilon _0}}}{1 \over {{a^2}}}} \right).\sqrt 2 a$$
C
$$\left( {{{ - qQ} \over {4\pi {\varepsilon _0}}}{1 \over {{a^2}}}} \right).\sqrt 2 a$$
D
$$\left( {{{qQ} \over {4\pi {\varepsilon _0}}}{1 \over {{a^2}}}} \right).{a \over {\sqrt 2 }}$$
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Two charges q1 and q2 are placed 30 cm apart, as shown in the figure. A third charge q3 is moved along the arc of a circle of radius 40 cm from C to D.

The change in the potential energy of the system is $${{{q_3}} \over {4\pi {\varepsilon _0}}}$$ where k is

AIPMT 2005 Physics - Electrostatics Question 36 English
A
8q1
B
6q1
C
8q2
D
6q2
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Two batteries, one of emf 18 volts and internal resistance 2 $$\Omega $$ and the other of emf 12 volts and internal resistance 1 $$\Omega $$, are connected as shown. The voltmeter V will record a reading of

AIPMT 2005 Physics - Current Electricity Question 61 English
A
30 volt
B
18 volt
C
15 volt
D
14 volt
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
When a wire of uniform cross-section $$a$$ length $$l$$ and resistance R is bent into a complete circle. resistance between any two of diametrically opposite points will be
A
R/4
B
4R
C
R/8
D
R/2
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