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1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
A current loop in a magnetic field
A
can be in equilibrium in two orientations, both the equilibrium states are unstable.
B
can be in equilibrium in two orientations, one stable while the other is unstable.
C
experiences a torque whether the field is uniform or non uniform in all orientations.
D
can be in equilibrium in one orientation.
2
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
A magnetic needle suspended parallel to a magnetic field requires $$\sqrt 3 J$$ of work to turn it through 60o. The torque needed to maintain the needle in this position will be
A
$$2\sqrt 3 J$$
B
$$3$$ $$J$$
C
$$\sqrt 3 \,J$$
D
$${3 \over 2}\,J$$
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole. It
A
will become rigif showing no movement
B
will stay in any position
C
will stay in north-south direction only
D
will stay in east-west direction only
4
AIPMT 2011 Mains
MCQ (Single Correct Answer)
+4
-1
A short bar magnet of magnetic moment 0.4 J T$$-$$1 is placed in a uniform magnetic field of 0.16 T. The magnet is in stable equilibrium when the potential energy is
A
0.064 J
B
$$-$$ 0.064 J
C
zero
D
$$-$$ 0.082 J
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Physics
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Units & Measurement Motion in a Straight Line Motion in a Plane Laws of Motion Work, Energy and Power Center of Mass and Collision Rotational Motion Gravitation Properties of Matter Heat and Thermodynamics Oscillations Waves
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Modern Physics
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Physical Chemistry
Some Basic Concepts of Chemistry Structure of Atom Redox Reactions Gaseous State Chemical Equilibrium Ionic Equilibrium Solutions Thermodynamics Electrochemistry Chemical Kinetics Nuclear Chemistry Solid State Surface Chemistry
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Periodic Table and Periodicity Chemical Bonding and Molecular Structure Processes of Isolation of Elements s-Block Elements Hydrogen p-Block Elements d and f Block Elements Coordination Compounds Environmental Chemistry
Organic Chemistry
Some Basic Concepts of Organic Chemistry Hydrocarbons Haloalkanes and Haloarenes Alcohol, Phenols and Ethers Aldehydes, Ketones and Carboxylic Acids Organic Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life
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Cell - The Unit of Life Biomolecules Cell Cycle and Cell Division Sexual Reproduction in Flowering Plants Microbes in Human Welfare Anatomy of Flowering Plants Transport in Plants Mineral Nutrition Respiration in Plants Biotechnology: Principles and Processes Biodiversity and Conservation The Living World Biological Classification Morphology of Flowering Plants Photosynthesis in Higher Plants Principles of Inheritance and Variation Molecular Basis of Inheritance Strategies for Enhancement in Food Production Biotechnology and It's Applications Organisms and Populations Environmental Issues Plant Kingdom Plant Growth and Development Ecosystem
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