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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।

PhysicsThe density of electric field lines indicates field magnitude. What is the most correct limitation of this statement?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsThe field is found by measuring force on a small positive test charge. If the test charge is large enough to move the source charges, what is the main error?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Hard PhysicsIf two equal electric fields in opposite directions give zero resultant, what happens if the direction of one is slightly turned?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIf two electric field vectors have equal magnitude and the angle between them is sixty degrees, the resultant field will be greater than which value?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Hard PhysicsAt a point, fields of 5 newton per coulomb eastward and 12 newton per coulomb northward act. What is the magnitude of the resultant field?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsAt the midpoint of two equal opposite charges, potential may be zero but why is electric field not zero?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Hard PhysicsAt a point, electric field is zero but potential is not zero. In which example is this possible?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Hard PhysicsThe electric field is zero inside a conductor but not necessarily zero outside it. What best explains this?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 18Medium PhysicsA hollow conductor has an empty cavity with no charge inside. In electrostatic equilibrium, what is the electric field inside the cavity?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 18Medium PhysicsIf field lines in a diagram touch a conductor while running along its surface, what conclusion is correct according to electrostatic equilibrium?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIn a non-uniform electric field, field lines become closer in one direction. Moving in that direction, how does the field magnitude change?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsOn the equatorial line of a dipole, which components of the fields due to the two charges cancel?Class 12Electric Charges and FieldsElectric Flux and Electric DipoleLevel 18Hard PhysicsFor an electric dipole, a far axial point and a far equatorial point are at the same distance. What is the ratio of their field magnitudes?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 18Hard PhysicsAt a far axial point of an electric dipole, what happens to the field magnitude if distance is made three times?Class 12Electric Charges and FieldsElectric Flux and Electric DipoleLevel 18Hard PhysicsIf the distance from a point charge is halved and the charge magnitude is also halved, how will the electric field change?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsWhat is the most mature use of electric field lines?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsAt a place field lines point right but a particle is moving left. What conclusion cannot be made with certainty?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsIf field lines are shown emerging outward from a negative charge, which rule is violated?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Easy PhysicsIf a diagram shows field lines starting from one positive charge and ending on another positive charge, what is the main error?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Easy PhysicsIf field lines in a region are directed from bottom to top and become closer upward, what happens to the force on a positive charge?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium