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Class 12 · Physics · Hard
→The torque on an electric dipole is zero and its potential energy is negative. In which position is the dipole placed in a uniform electric field?
Class 12 · Physics · Hard
→The torque on an electric dipole is zero and its potential energy is positive. In which position is the dipole placed in a uniform electric field?
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
→A dipole moment is doubled, and the angle changes from 30° to 90°. In the same electric field, by what factor does the torque change?
Class 12 · Physics · Hard
→If the torque on a dipole is maximum, which conclusion is correct?
Class 12 · Physics · Hard
→If the torque on a dipole is zero, which conclusion cannot be established from this fact alone?
Class 12 · Physics · Hard
→If a dipole moves from unstable equilibrium to stable equilibrium, what is the work done by the electric field?
Class 12 · Physics · Hard
→If a dipole is moved slowly from stable equilibrium to unstable equilibrium, what is the external work done?
Class 12 · Physics · Hard
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