Category: Physics Practical Help

Surprise your teachers with amazing score in Physics !

Do you want to bring a big surprise to your teachers, parents and friends by scoring amazing marks in Physics exam? Here are some tips! Have you been branded as a slow learner or a weak students in Physics so far? Do you fear of failure in Physics in the forthcoming examination? Is Physics a …

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Questions from Physics Viva

What happens to the resistivity of a wire when it is doublefolded? How does the resistance of a wire depend on its dimensions? Why are the resistances used in a resistance box is like 1,2,2,5,10,20,20,50,100,200,200,500,1000,2000,2000,5000 etc? Why constantan or manganin wires are used for making the resistance coils in resistance box? What is a standard …

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Viva help for Optics Experiments

Define refractive index. WHat is the least value of refractive index possible? What can you infer if someone says that he has a medium of refractive index less than one? Define focus. Define pole of a spherical mirror. Define optic centre. What is spherical abberration? WHat is chromatic abberration? What is the focal length of …

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Part -2 (Electricity Based Experiments :: Viva)

What is Ac? WHat is DC? Distinguish unidirectional current and direct current. Define RMS value of AC. What do you mean by frequency of AC? Why the power supply to our houses are AC and not DC? What are the advantages of AC over DC? What is a choke coil? WHy a choke coil is …

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Viva Voce Questions from OHM’S LAW, METRE BRIDGE, POTENTIOMETER, GALVANOMETER AND OTHER EXPERIMENTS FROM ELECTRICITY AND MAGNETISM

What happens to the resistivity of a wire when it is doublefolded? How does the resistance of a wire depend on its dimensions? Why are the resistances used in a resistance box is like 1,2,2,5,10,20,20,50,100,200,200,500,1000,2000,2000,5000 etc? Why constantan or manganin wires are used for making the resistance coils in resistance box? What is a standard …

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Permanent link to this article: http://cbsephysics.in/viva-voce-questions-from-ohms-law-metre-bridge-potentiometer-galvanometer-and-other-experiments-from-electricity-and-magnetism/

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