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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।

PhysicsA dipole is allowed to move freely from unstable equilibrium to stable equilibrium. If the product of its dipole moment and the electric field is 25 J, what work is done by the field?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 11Hard PhysicsA dipole is allowed to rotate freely from 90° to 0°. What work is done by the electric field if the product of the dipole moment and field is 32 J?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 11Hard PhysicsWhat external work is required to rotate a dipole slowly from the parallel position to 120° if the product of its dipole moment and the electric field is 18 J?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 11Hard PhysicsWhat external work is required to rotate a dipole slowly from the parallel position to 60° if the product of its dipole moment and the electric field is 40 J?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 11Hard PhysicsThe product of the dipole moment and the electric field is 24 J. What is the potential energy of the dipole when the angle between them is 150°?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 11Hard PhysicsIf the maximum torque is 81 newton metre and the dipole moment is 9 coulomb metre, what is the electric field?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 11Hard PhysicsIf the maximum torque is 56 newton metre and the electric field is 7 newton per coulomb, what is the dipole moment?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 11Hard PhysicsThe angle between the dipole moment and the electric field is 45°. What is the ratio of the torque magnitude to the magnitude of potential energy?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard PhysicsIf the sine and cosine of the angle between the dipole moment and the electric field are equal, what is the angle?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Medium PhysicsIf an electric dipole is placed in a nonuniform electric field, which statement about the net force is more accurate?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard PhysicsThe net force on an electric dipole in a uniform electric field is zero. Which conclusion can be drawn from this?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard PhysicsThe magnitude of an electric dipole moment is fixed. If the field magnitude is increased but the angle is chosen so that the sine of the angle becomes half, when will the torque remain unchanged?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard PhysicsIf an electric dipole is in unstable equilibrium, what happens to its potential energy for a small angular displacement?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard PhysicsIf an electric dipole is in stable equilibrium, what happens to its potential energy for a small angular displacement?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard PhysicsIf the potential energy of an electric dipole is zero, which statement is correct?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard PhysicsIf the torque on an electric dipole is half its maximum value and its potential energy is positive, what is the angle?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard PhysicsIf the torque on an electric dipole is half its maximum value and its potential energy is negative, what is the angle?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard PhysicsThe torque on an electric dipole is √3/2 times its maximum torque. What can be the angle between the dipole moment and the field?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard PhysicsThe product of the dipole moment and electric-field magnitude is 18. If the potential energy of the dipole is 9 J, what can be the angle between them?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard PhysicsThe product pE for a dipole is 16 J. At what angle will its potential energy be −8 J?Class 12Electric Charges and FieldsDipole in a Uniform External FieldLevel 10Hard