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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 32 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 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
→A dipole moment is 8 coulomb metre and the electric field is 5 newton per coulomb. If the angle is 120 degrees, what is the torque?
Class 12 · Physics · Hard
→A dipole moment is 10 coulomb metre and the electric field is 5 newton per coulomb. If the angle is 150 degrees, what is the torque?
Class 12 · Physics · Hard
→A dipole moment is 6 coulomb metre and the electric field is 4 newton per coulomb. If the angle is 60 degrees, what is the torque?
Class 12 · Physics · Hard
→A dipole moment is 12 coulomb metre and the electric field is 2 newton per coulomb. If the angle is 30 degrees, what is the torque?
Class 12 · Physics · Hard
→What is the safest solving order for difficult problems on a dipole in a uniform external electric field?
Class 12 · Physics · Hard
→The product of dipole moment and electric field is 20 J. What external work is required to slowly move the dipole from 90° to 180°?
Class 12 · Physics · Hard
→A dipole is released freely in a uniform electric field with an initial angle of 120°. Toward which position will it tend to rotate?
Class 12 · Physics · Medium
→A dipole has zero potential energy and is rotated toward the opposite direction. What happens to its potential energy?
Class 12 · Physics · Medium
→A dipole has zero potential energy and is rotated slightly toward the parallel direction. What happens to its potential energy?
Class 12 · Physics · Hard
→If the direction of the dipole moment is mistakenly taken to be opposite to its physical direction, what can happen to the measured angle and the conclusion about potential energy?
Class 12 · Physics · Hard
→If the angle increases from 45° to 135°, what happens to the torque magnitude and the sign of the dipole's potential energy?
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
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