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Class 12 · Physics · Hard
→The angle between dipole moment and field has positive sine but zero cosine. Which conclusion is correct?
Class 12 · Physics · Hard
→If a dipole is parallel to the field, why does a small displacement bring it back?
Class 12 · Physics · Hard
→If dipole moment and field are opposite, why is the position unstable even though torque is zero?
Class 12 · Physics · Medium
→Why does the vector form of torque show that torque is zero in the parallel position?
Class 12 · Physics · Medium
→Which rule can be used to understand the direction of torque on a dipole in a uniform field?
Class 12 · Physics · Medium
→Why can net force on a dipole be nonzero in a nonuniform electric field?
Class 12 · Physics · Medium
→Why does the centre of mass of a dipole not accelerate in a uniform field while the dipole can rotate?
Class 12 · Physics · Medium
→An electric dipole is released freely in a uniform field with an initial angle of 135°. Toward which position will it tend to rotate?
Class 12 · Physics · Medium
→The potential energy of an electric dipole is zero. If it is rotated slightly toward the opposite direction, what happens to its energy?
Class 12 · Physics · Medium
→The potential energy of an electric dipole is zero. If it is rotated slightly toward the parallel direction, what happens to its energy?
Class 12 · Physics · Hard
→If the dipole-moment direction is mistakenly taken from the positive charge to the negative charge, why can the potential-energy conclusion be wrong?
Class 12 · Physics · Medium
→An electric dipole in a uniform field has zero net force but rotates. Which physical idea explains this best?
Class 12 · Physics · Medium
→If the potential energy of an electric dipole is zero, which statement about its angle and torque is correct?
Class 12 · Physics · Medium
→If the torque on an electric dipole is zero and its potential energy is minimum, what is the dipole's position?
Class 12 · Physics · Medium
→If the torque on an electric dipole is zero and its potential energy is maximum, what is the dipole's position?
Class 12 · Physics · Hard
→If the angle of an electric dipole changes from 45° to 135° in a uniform field, which statement is correct?
Class 12 · Physics · Hard
→If the angle of an electric dipole changes from 30° to 150° in a uniform electric field, which statement about torque and potential energy is correct?
Class 12 · Physics · Hard
→If dipole moment becomes four times and field becomes half while angle changes from 60° to 120°, what happens to torque?
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
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