1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
A, B and C are three points in a uniform electric field. The electric potential is

NEET 2013 Physics - Electrostatics Question 64 English
A
maximum at C
B
same at all the three points A, B and C
C
maximum at A
D
maximum at B
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
A wire of resistance 4 $$\Omega $$ is stretched to twice its original length. The resistance of stretched wire would be
A
8 $$\Omega $$
B
16 $$\Omega $$
C
2 $$\Omega $$
D
4 $$\Omega $$
3
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
The condition under which a microwave oven heats up a food item containing water molecules most efficiently is
A
Microwaves are heat waves, so always produce heating.
B
Infra-red waves produce heating in a microwave oven.
C
The frequency of the microwaves must match the resonant frequency of the water molecules.
D
The frequency of the microwaves has no relation with natural frequency of water molecules.
4
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
A wire loop is rotated in a magnetic field. The frequency of change of direction of the induced e.m.f. is
A
four times per revoluation
B
six times per revolution
C
once per revolution
D
twice per revolution