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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।

PhysicsIn a non-uniform field, the lines point upward and become sparser upward. What happens to the force on an electron and to its magnitude?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsA positive test charge is placed in a non-uniform field where field lines become denser toward the right. Which statement about the force is correct?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsIf the electric field is zero at one point but nonzero at nearby points, how should that zero-field point be understood?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsA field line is shown oblique to a conductor surface. What is the main defect in the diagram?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 17Medium PhysicsWhy are electric field lines drawn more densely near the pointed part of a charged conductor?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 17Hard PhysicsIf a positive charge is placed inside the cavity of a conductor, which statement about electric field lines in the cavity is correct?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 17Hard PhysicsA closed conductor has an empty cavity. If a very strong external electric field is applied, what will the electric field inside the cavity be?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 17Medium PhysicsWhy must the tangential component of the electric field at the surface of a conductor in electrostatic equilibrium be zero?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 17Medium PhysicsIf the same number of electric field lines leave and enter a closed surface, will the electric field be zero everywhere on the surface?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsWhere will the zero-field point lie between two unequal like charges and why?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Hard PhysicsAt a point two equal electric fields are in opposite directions. If the source of one field is removed, how will the net field change?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsIf two electric fields of equal magnitude act at an angle of one hundred twenty degrees, what will be the resultant magnitude?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsIf two electric fields of equal magnitude act at an angle of sixty degrees at a point, what is the resultant magnitude equal to?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsAt a point the electric field is seven newtons per coulomb east and twenty-four newtons per coulomb north. What is the magnitude of the resultant field?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsTwo electric fields have magnitudes five and twelve newtons per coulomb and are mutually perpendicular. What is the magnitude of the resultant field?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsWhy is the net field on the equatorial line of a dipole opposite to the dipole moment?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 17Hard PhysicsFor a dipole at far axial and equatorial points at the same distance, what is the ratio of the magnitudes of electric fields?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 17Hard PhysicsAt a far equatorial point of a dipole, if the distance is tripled, approximately what will the electric field become?Class 12Electric Charges and FieldsElectric Flux and Electric DipoleLevel 17Hard PhysicsOn the axial line of an electric dipole at a far point, if the distance is doubled, approximately what fraction of the electric field remains?Class 12Electric Charges and FieldsElectric Flux and Electric DipoleLevel 17Hard PhysicsAt a point above the midpoint of a positive charge and an equal negative charge, what is the direction of the net electric field?Class 12Electric Charges and FieldsElectric Flux and Electric DipoleLevel 17Hard