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Chapter1 Electric Charges And Fields

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

PhysicsFor a plane surface, the area vector points upward while the electric field points downward. What is the sign of the electric flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Easy PhysicsA closed surface encloses the positive charge of a dipole, while the negative charge lies outside it. The surface is then enlarged to enclose both charges. What happens to the net electric flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsA complete electric dipole is inside a closed surface. The net flux is zero, but will the electric field be zero everywhere on the surface?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsA closed surface is changed from a sphere to an irregular shape while the enclosed net charge remains the same. Why does the total flux not change?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsA charge inside a closed surface is moved from the centre to a position near the surface. What happens to the total flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsA positive charge is placed at the centre of a cube. By symmetry, what fraction of the total flux passes through each face?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsNet flux through a closed surface is zero, yet field lines leave one part of the surface and enter another part. How is this possible?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsA closed surface contains two positive charges and one negative charge whose net charge is positive. A large negative charge is placed outside. What determines the net flux through the closed surface?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsFlux through a surface is positive. If the area vector of the same surface is reversed while the electric field remains unchanged, what happens to the flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsA plane surface has an area of four square metres and is placed in an electric field of ten newtons per coulomb. If the angle between the area vector and the electric field is sixty degrees, what is the electric flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 20Medium PhysicsIn a combined question on electric flux and an electric dipole, what should be identified first?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsIf the dipole moment of a dipole is said to be zero but the separation between its charges is non-zero, which conclusion is suitable?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Hard PhysicsA closed surface completely enclosing a dipole is enlarged. What happens to the total flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Medium PhysicsNet charge inside a closed surface is doubled and the shape of the surface is also changed. What happens to total flux?Class 12Chapter1: Electric Charges and FieldsGauss's Law and its ApplicationsLevel 19Medium PhysicsIf the angle between area vector and electric field increases beyond 90 degrees, what qualitative change occurs in flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Easy PhysicsWhy is the convention of taking area vector outward for a closed surface important?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Easy PhysicsFlux through an open surface is negative. If the area vector of the same surface is reversed, what happens to the flux?Class 12Chapter1: Electric Charges and FieldsElectric Flux and Electric DipoleLevel 19Easy PhysicsIf a dipole is aligned opposite to the field, why is it unstable even though torque is zero?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsIf a dipole is aligned with the field, why is it stable even though torque is zero?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium PhysicsA dipole is placed in a uniform field with its dipole moment at 90 degrees to the field. Which statement about net force and torque is correct?Class 12Chapter1: Electric Charges and FieldsDipole in a Uniform External FieldLevel 19Medium