electric current and magnetism - Category wise Question and Answer Practice Test with Solutions
electric current and magnetism PRACTICE TEST [9 - EXERCISES]
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set 9
Question : 12
Two spheres A and B of exactly same mass are given equal positive and negative charges respectively. Their masses after charging
a) mass of A > mass of B
b) mass of A < mass of B
c) remains unaffected
d) nothing can be said
Answer »Answer: (b)
A loses electrons and B gains electrons. Therefore, mass of A < mass of B.
Question : 13 [NDA]
Which one of the statements given below is not correct?
a) The degree to which the magnetic field can penetrate a medium is known as the relative permeability of the medium
b) A vertical plane passing through the axis of a freely suspended magnet is called the magnetic meridian
c) A vertical plan passing through the axis of rotation of the Earth is called the geographical meridian
d) The relative permeability is not a dimensionless quantity
Answer »Answer: (d)
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set 9 Online Quiz
Click to Start..general science mcq CATEGORIES
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» Measurement And SI Units
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» Measuring Devices And Scales
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» Mechanics (Mass, Force, Acceleration, Work, Energy, Momentum, Velocity)
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» Force Of Gravity, Solids And Fluids
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» Motion Under Gravity
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» Physical Properties Of Materials
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» Light, Heat, Thermodynamics, Wave Motion, Sound, Optics & Oscillations
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» Electric Current And Magnetism
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» Nuclear Physics And Conductivity
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» Modern And Space Physics, Sources Of Energy
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» General Concepts Of Chemistry
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» Nature Of Matter And Composition
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» Atomic Structure Molecules And Nuclear Chemistry
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» Classification Of Elements, Chemical Bonding, Periodicity In Properties & Physical Transformation
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» Metals, Non Metals, Minerals, Ores, Properties, Uses
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» Alloys, Carbon & Its Various Forms, Hydrogen & Compounds, Sulphur, Nitrogen, Halogen & Inert Gases
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» Acids, Bases, Salts And Metals
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» Hydrocarbon, Alcohol, Polymer, Organic Acid And Explosive Substance
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» Fuel, Food Preservation, Nutrition, Medicine, Detergents And Fertilizers
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» Inorganic Chemistry
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» Organic Chemistry
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» Environmental Chemistry
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» Some Important Man Made Materials
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» Sub Divisions Of Biology
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» Genetics, Evolution Of Life & Ecological Biodiversity
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» Taxonomy
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» Heredity
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» Biofertilizer
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» Biological Classification Cell Tissues And Division
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» Human Anatomy
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» Blood Transport System
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» Digestion And Excretion
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» Photosynthesis
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» Vitamins, Nutrition, Health, Disease And Treatment
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» Endocrine Glands, Hormones
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» Physiology Of Plants, Humans And Animals
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» Reproduction
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» Genetic Engineering And Bio Technology
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