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Class 12 Mcq

Class 12 Physics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

PhysicsA system contains a total positive charge of +12 C and a total negative charge of −15 C. What is its net charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsElectric charge is a scalar quantity. Why are positive and negative signs used when calculating total charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsEnergy is spent while charging by friction. Why does this process not create net electric charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsWhy do protons not move when a body is made positively charged by touching it with a positively charged rod?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsA charged conducting sphere is touched with an identical neutral conducting sphere. Why does the charge on the first sphere become half its original value?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsThree identical conducting spheres carry charges +9 C, 0 C, and 0 C. They are touched together and then separated. What charge is left on each sphere?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsTwo identical conducting spheres initially carry charges +6 C and 0 C. They are touched and then separated. What charge does each sphere carry?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsA body has a charge of −9.6 × 10⁻¹⁹ C. How many excess electrons does it contain?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsThe charge of a body is said to be positive 7.2 × 10⁻¹⁹ coulomb. Why is this claim doubtful?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13MediumPhysicsAt school level, what is the most correct response to the claim that a particle has positive two-third elementary charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13MediumPhysicsIf three extra electrons are added to a neutral atom, what will be its charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsIf two electrons are removed from a neutral atom, what will be its charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsA system has twelve protons and fifteen electrons. What is the correct description of net charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsA system contains nine electrons and seven protons. What will be the net charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsDoes a neutral body become net charged only by rearrangement of electrons?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsIn a neutral conductor, induction only separates charges. What remains the net charge if earthing is not done?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 13EasyPhysicsWhen a negative rod is brought near a neutral conductor, what effect appears at the near end?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 13EasyPhysicsWhen a positive rod is brought near a neutral conductor, what effect appears at the near end?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 13EasyPhysicsA metal sphere is negatively charged. When it is connected to Earth, what is the direction of electron flow?Class 12Chapter 3: Current ElectricityElectric Current and Flow of Electric Charges in a Metallic ConductorLevel 13MediumPhysicsA metal sphere is positively charged. When it is connected to Earth, what is the direction of electron flow?Class 12Chapter 3: Current ElectricityElectric Current and Flow of Electric Charges in a Metallic ConductorLevel 13Medium

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