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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।

PhysicsIf a dipole is parallel to the field, why does a small displacement bring it back?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard PhysicsIf dipole moment and field are opposite, why is the position unstable even though torque is zero?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard PhysicsWhy does the vector form of torque show that torque is zero in the parallel position?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Medium PhysicsWhich rule can be used to understand the direction of torque on a dipole in a uniform field?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Medium PhysicsWhy can net force on a dipole be nonzero in a nonuniform electric field?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Medium PhysicsWhy does the centre of mass of a dipole not accelerate in a uniform field while the dipole can rotate?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Medium PhysicsIf dipole moment becomes four times and field becomes half while angle changes from 60° to 120°, what happens to torque?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard PhysicsThe dipole moment is halved and the field is made ten times larger. The angle changes from 90° to 30°. How many times is the new torque compared with the old torque?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard PhysicsThe dipole moment is tripled and the electric field is made four times larger. The angle changes from 30° to 60°. How many times is the new torque compared with the old torque?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard PhysicsThe product of dipole moment and field is 48. If torque is 24 and energy is positive, what is the angle?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Medium PhysicsThe product of dipole moment and field is 24. If torque is 12 and energy is negative, what is the angle?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Medium PhysicsThe product of dipole moment and field is 40 joule. If potential energy is 20 joule, what can be the angle?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Medium PhysicsThe product of dipole moment and field is 28 joule. If potential energy is −14 joule, what can be the angle?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Medium PhysicsAt which angle is torque root three by two of maximum torque and potential energy negative?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard PhysicsAt which angle is torque root three by two of maximum torque and potential energy positive?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard PhysicsAt which angle is torque half of maximum torque and potential energy negative?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard PhysicsAt which angle is the torque half of its maximum value and the potential energy positive?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard PhysicsThe angle between the dipole moment and the electric field is 45°. What is the ratio of the torque magnitude to the magnitude of the potential energy?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard PhysicsIf the torque on a dipole is √2/2 times its maximum torque and its potential energy is positive, what is the angle between the dipole moment and the field?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard PhysicsIf the torque on a dipole is √2/2 times its maximum torque and its potential energy is negative, what is the angle between the dipole moment and the field?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 12Hard