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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 sign of a point charge is changed while magnitude and distance remain the same. What changes in the field-line diagram?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIf an electric field line is curved at a point, how is the field direction at that point decided?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsA field-line diagram has two unequal positive charges. How should lines appear near the larger positive charge?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIn a field-line diagram, fewer lines start from positive charge and more lines terminate on negative charge. What does this indicate about net charge?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsAt a point, electric field vectors due to two charges are opposite and unequal in magnitude. What is the direction of the net field?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsAt a point, electric field vectors due to two charges have the same direction. How is the magnitude of the net field found?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIf a negative charge is released at a point where the field-line arrow points east, what is the direction of its initial acceleration?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Easy PhysicsAn arrow on a field line points east. If a positive charge is released gently at that point, what is the direction of its initial acceleration?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Easy PhysicsThe field due to a point charge is 900 newton per coulomb at a distance of 0.2 metre. What will be the field at 0.6 metre?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsAt a point, the electric field is 2000 newton per coulomb eastward. What is the force on a 3 microcoulomb negative charge placed there?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Easy PhysicsA negative charge is placed where the electric field is northward. If the charge magnitude is doubled, what happens to the force?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Easy PhysicsA positive test charge experiences zero force at a point. Is it correct to say that there are no source charges around?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIn a region, field lines are equally spaced but gradually curved. What conclusion follows?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIf the magnitude of electric field is the same in a region but its direction changes with position, is the field uniform?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Easy PhysicsWhy can a net force act on an electric dipole in a non-uniform electric field?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 18Medium PhysicsAn electric dipole is placed perpendicular to a uniform electric field. How is its torque compared to other orientations?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 18Medium PhysicsAn electric dipole is placed parallel to a uniform electric field. What is the torque on it?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 18Medium PhysicsFor two equal and opposite charges, what is the field direction at a far point on the perpendicular bisector?Class 12Electric Charges and FieldsElectric Flux and Electric DipoleLevel 18Medium PhysicsFor two equal positive charges, at a very far point on the perpendicular bisector, what is the approximate direction of the combined field?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium PhysicsIn a field-line diagram, a line crosses itself and forms a closed shape. Why is this unacceptable for an electrostatic field?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 18Medium