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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 difficult problems, which ordered identification is most useful to begin solving a continuous charge distribution correctly?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Hard PhysicsIf total charge of a distribution is positive, must the charge of every small element be positive?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf the total charge of a system is zero, is the electric field necessarily zero everywhere?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Hard PhysicsIf the sign of charge density changes over a surface, what must be considered when finding the total charge and electric field?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Hard PhysicsWhat is the main problem caused by choosing the wrong unit for density in a continuous charge distribution?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf two equal small elements in a linear charge distribution carry unequal charges, which conclusion is appropriate?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsTwo equal-length small elements are chosen at equal distances from the centre of a uniformly charged rod. How do their charges compare?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsWhat is the main reason that the electric field at the centre of a uniformly charged semicircular arc is not zero?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Hard PhysicsWhy is the electric field at the centre of a uniformly charged arc generally not zero, unlike the field at the centre of a complete uniformly charged ring?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Hard PhysicsTwo solids have the same total charge, but one has a smaller volume. Assuming uniform distribution, what is the volume charge density of the smaller solid?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsTwo wires carry the same total charge, but one wire is longer. Assuming uniform distribution, how does the linear charge density of the longer wire compare?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf two surfaces carry the same total charge and the charge is uniformly distributed, which surface has the smaller surface charge density?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsWhy does the total charge increase when the area of a surface with uniform surface charge density becomes larger?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Easy PhysicsIf the total charge on a ring is positive, does zero electric field at its centre mean that there is no electric effect there?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsAt the centre of a uniformly charged ring, the field due to each small element is non-zero. Why is the total electric field zero?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsWhy are both the magnitude and direction of small elements important when using superposition to find an electric field?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf volume charge density depends on distance from the centre, what must be considered when finding the total charge?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIn a surface charge distribution, if the surface density changes with position in one direction, what type of distribution is it?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf the linear charge density of a line distribution decreases with distance, how does the charge in successive equal-length sections behave?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium PhysicsIf two charge distributions have the same total charge, one uniform and one non-uniform, whose electric field can usually be calculated more simply?Class 12Electric Charges and FieldsContinuous Charge DistributionLevel 5Medium