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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।

PhysicsIf a neutral particle forms a particle with plus three elementary charges and another unknown particle, what is the charge of the unknown particle?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14EasyPhysicsA particle decays into three particles. The initial charge is plus two elementary charges. Two products have charges minus one and plus four elementary charges. What is the charge of the third product?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14EasyPhysicsWhich option has zero total charge even though all objects may be individually charged?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14EasyPhysicsWhich option has a total charge of −2q?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14EasyPhysicsAn object has −6 elementary charges. It gives away five electrons and then receives two electrons. What is its final charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsA conductor has charge +5q. A charge −9q enters it from outside. What is the final charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14EasyPhysicsA conductor has charge −4q. If charge −7q leaves it, what is the new charge of the conductor?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsTwo conductors of unequal size have charges +8q and −2q. After they are brought into contact, what is guaranteed?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsA closed system has total charge +q. In the final state, four parts have charges +2q, −3q, +5q, and an unknown charge. What is the unknown charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14EasyPhysicsIn an isolated system, the charge of one part changes from −3q to +5q. What change must occur in the charge of the remaining system?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsIn charging by induction, if the rod is removed before the earth connection is removed, why is a permanent charge not formed?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsA negatively charged rod is placed near a neutral conductor, and the conductor is earthed. After the earth connection is removed, the rod is taken away. What charge remains on the conductor?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsA free object is said to have a charge of −5.6 × 10^-19 C. Why is this statement wrong?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsWhich of the following charges cannot be possible on a free object?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsA particle has a charge of −3.84 × 10^-18 C. What is the number of excess electrons?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsAn object has a charge of +2.88 × 10^-18 C. How many electrons has it lost?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsFour drops have charges of +3e, −5e, +7e, and −1e. They combine into one drop. What is the charge of the new drop?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14EasyPhysicsA drop has a charge of −15 elementary charges. It breaks into two drops, one of which has +4 elementary charges. What is the charge on the other drop?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsA particle has a charge of +7 elementary charges. It first gains 12 electrons and then loses 4 electrons. What is its final charge?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14MediumPhysicsTwo identical metal spheres initially have charges of +18 C and −10 C. After contact, one sphere is connected to earth. What is the final charge of that sphere?Class 12Electric Charges and FieldsElectric Charges and their ConservationLevel 14Medium

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