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Class 12 · Physics · Hard
→The 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 12 · Physics · Hard
→The 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 12 · Physics · Medium
→The product of dipole moment and field is 48. If torque is 24 and energy is positive, what is the angle?
Class 12 · Physics · Medium
→The product of dipole moment and field is 24. If torque is 12 and energy is negative, what is the angle?
Class 12 · Physics · Medium
→The product of dipole moment and field is 40 joule. If potential energy is 20 joule, what can be the angle?
Class 12 · Physics · Medium
→The product of dipole moment and field is 28 joule. If potential energy is −14 joule, what can be the angle?
Class 12 · Physics · Hard
→At which angle is torque root three by two of maximum torque and potential energy negative?
Class 12 · Physics · Hard
→At which angle is torque root three by two of maximum torque and potential energy positive?
Class 12 · Physics · Hard
→At which angle is torque half of maximum torque and potential energy negative?
Class 12 · Physics · Hard
→At which angle is the torque half of its maximum value and the potential energy positive?
Class 12 · Physics · Hard
→The 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 12 · Physics · Hard
→If 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 12 · Physics · Hard
→If 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 12 · Physics · Hard
→What external work is needed to move a dipole slowly from stable equilibrium to unstable equilibrium if pE = 37 J?
Class 12 · Physics · Hard
→A dipole is allowed to move freely from unstable equilibrium to stable equilibrium. If pE = 42 J, what work is done by the electric field?
Class 12 · Physics · Hard
→A 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 48 J?
Class 12 · Physics · Hard
→What external work is required to rotate a dipole slowly from the parallel position to 120° if the product of its dipole moment and the field is 30 J?
Class 12 · Physics · Hard
→What external work is required to rotate a dipole slowly from the parallel position to 60° if the product of its dipole moment and the field is 54 J?
Class 12 · Physics · Hard
→The product of the dipole moment and the external electric field is 36 J. What is the potential energy of the dipole when the angle between them is 150°?
Class 12 · Physics · Hard
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