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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।

PhysicsFor a point far away on the axis of a uniformly charged ring, in which direction does the electric field point?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf a spherical shell and a solid sphere have the same total charge, why can their charge densities be different?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf the observation point is very close to a distribution, why can treating spread charge as a point charge be risky?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsWhen can a continuous distribution be treated like a point charge at a far point?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf local density is high in a distribution, how is the contribution of a small element at that place generally affected?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIn a uniform volume distribution, why does each equal-volume part contain an equal fraction of the total charge?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Easy PhysicsWhy can the surface density of each small part remain the same when a uniformly charged plate is cut into parts?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Easy PhysicsIf a uniform linear distribution is divided into two parts, under what condition will both parts have the same linear density?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Easy PhysicsWhy is the electric-field direction near a uniformly charged sheet generally taken to be normal to the surface?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsWhy do components perpendicular to the axis cancel at a point on the axis of a uniformly charged ring?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf density changes with position in a volume distribution, which idea is most suitable for finding the total charge?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf half the surface has density four coulomb per square metre and the other half has negative four coulomb per square metre, what is the total charge?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsA linear distribution has density +2 C/m over its first half and −2 C/m over its second half. The two halves have equal lengths. What is the total charge?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf linear charge density changes from positive to negative, what is necessary when finding the total charge?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIn a non-uniform linear charge distribution, average density can give total charge, but why may it not give the complete electric field?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Hard PhysicsWhy is zero electric field at the centre not guaranteed for a non-uniformly charged ring?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf one end of a uniformly charged rod is cut off, why can the field direction at the old perpendicular bisector change?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Hard PhysicsOn the perpendicular bisector of a uniformly charged rod, what is the direction of the total electric field and why?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsAt the centre of a uniformly charged ring, the electric field is zero but the potential need not be zero. What is the best reason?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsA small part of a uniformly charged ring is removed. Which statement about the electric field at the centre is most accurate?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium