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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 real field-line diagram, the number of drawn lines is limited. Still, what is the physical meaning of showing more lines?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsFor a system of two equal positive charges, how will the field behave approximately at a very distant point?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIf two equal and opposite charges are placed very close, how does their combined field at far points decrease compared with a single charge field?Class 12Electric Charges and FieldsElectric Flux and Electric DipoleLevel 18Hard PhysicsThe field of a point charge is 20 newton per coulomb. At the same distance, if the sign of the charge is reversed but magnitude remains the same, what changes in the field?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIn a uniform electric field, field lines are equally spaced. If in a diagram they gradually come closer, what does that indicate?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Easy PhysicsIf the force on a negative charge at a point is westward, what is the direction of the electric field at that point?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Easy PhysicsIf the force on a positive test charge at a point is westward, what is the direction of the electric field at that point?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Easy PhysicsWhy is the test charge in the definition of electric field taken as positive and very small?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsFor two equal negative charges, what is the direction of the net electric field at a point on the perpendicular bisector?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsFor two equal positive charges, what is the direction of the net electric field at a point on the perpendicular bisector of the line joining them?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIf electric field lines are shown oblique to the surface of a conductor, what is the mistake in that diagram?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsField lines near a single point charge are straight and radial, but why can they be curved near two charges?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsThe field due to a point charge is 100 newton per coulomb. On the same line, what distance is needed for the field to become 25 newton per coulomb?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsFor two opposite charges, if the negative charge has larger magnitude, from where are some field lines considered to come?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsTwo opposite charges are present, and the positive charge has a larger magnitude. Which property of field lines is correct?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIn a non-uniform electric field, the net force on an electric dipole may not be zero. What is the main reason?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 18Hard PhysicsIn a uniform electric field, what is the net force on an electric dipole if only electric forces are considered?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 18Hard PhysicsIf the distance of a far axial point from an electric dipole is doubled, approximately what happens to the field magnitude?Class 12Electric Charges and FieldsElectric Flux and Electric DipoleLevel 18Hard PhysicsAt a far point on the equatorial line of an electric dipole, how is the electric field directed relative to the dipole moment?Class 12Electric Charges and FieldsElectric Flux and Electric DipoleLevel 18Hard PhysicsAt a far point on the axial line of an electric dipole, how does the field magnitude compare with the field at the equatorial line at the same distance?Class 12Electric Charges and FieldsElectric Flux and Electric DipoleLevel 18Hard