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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।

PhysicsWhy is the field at a far equatorial point of a dipole opposite to the dipole moment?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsWhat is the relation between dipole field magnitudes at a far axial point and a far equatorial point at the same distance?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsA dipole has zero net charge, yet why does its far field decrease differently from a point charge field?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsIf dipole moment has to be made nine times and separation is made three times, what should be done to charge magnitude?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Medium PhysicsThe charge of a dipole is made four times and the separation is made half. What happens to dipole moment?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Medium PhysicsOn a closed surface enclosing a complete dipole, field is outward at some places and inward at others. How can total flux be zero?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsA closed surface contains net positive charge, but field enters through some part of the surface. What will be the sign of total flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsA charge outside a closed surface creates electric field on the surface. Why is its contribution to total closed flux considered zero?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsA surface is rotated so that the angle between the area vector and electric field changes from 30 degrees to 60 degrees. How will the flux change?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Medium PhysicsThe angle between the area vector and electric field is 120 degrees. For the same field and area, what is the sign of flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Medium PhysicsFlux through an open surface is zero. Does it definitely prove that electric field at that place is zero?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsThe total flux through a closed surface is zero. Which conclusion is the safest?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsA closed surface contains only the negative charge of a dipole while the positive charge is outside. What is the sign of total flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsA complete electric dipole is placed inside a closed surface. What happens to total electric flux when the shape of the surface is changed?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsWhat is the most important difference between electric flux and electric dipole moment?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 21Medium PhysicsThe area vector of a plane surface is northward. The electric field is toward north-east. What will be the sign of flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 21Medium PhysicsWhat is common between far axial and far equatorial fields of a dipole?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 21Hard PhysicsFlux through a plane surface is zero. If the electric field magnitude is doubled but its direction remains parallel to the surface, what will be the flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 21Medium PhysicsA dipole is placed perpendicular to a uniform field. If it is free, in which way will it tend to rotate?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 21Medium PhysicsWhen can the dipole moment of a dipole become zero?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 21Medium