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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 electric field is 18 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 electric field is 40 J?
Class 12 · Physics · Hard
→The 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 12 · Physics · Hard
→If the maximum torque is 81 newton metre and the dipole moment is 9 coulomb metre, what is the electric field?
Class 12 · Physics · Hard
→If the maximum torque is 56 newton metre and the electric field is 7 newton per coulomb, what is the dipole moment?
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 potential energy?
Class 12 · Physics · Medium
→If the sine and cosine of the angle between the dipole moment and the electric field are equal, what is the angle?
Class 12 · Physics · Hard
→If an electric dipole is placed in a nonuniform electric field, which statement about the net force is more accurate?
Class 12 · Physics · Hard
→The net force on an electric dipole in a uniform electric field is zero. Which conclusion can be drawn from this?
Class 12 · Physics · Hard
→The 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 12 · Physics · Hard
→If an electric dipole is in unstable equilibrium, what happens to its potential energy for a small angular displacement?
Class 12 · Physics · Hard
→If an electric dipole is in stable equilibrium, what happens to its potential energy for a small angular displacement?
Class 12 · Physics · Hard
→If the potential energy of an electric dipole is zero, which statement is correct?
Class 12 · Physics · Hard
→If the torque on an electric dipole is half its maximum value and its potential energy is positive, what is the angle?
Class 12 · Physics · Hard
→If the torque on an electric dipole is half its maximum value and its potential energy is negative, what is the angle?
Class 12 · Physics · Hard
→The 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 12 · Physics · Hard
→The 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 12 · Physics · Hard
→The product pE for a dipole is 16 J. At what angle will its potential energy be −8 J?
Class 12 · Physics · Hard
→The dipole moment remains unchanged. The electric field is doubled, and the angle changes from 90° to 30°. What happens to the torque?
Class 12 · Physics · Hard
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