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Class 12 · Physics · Medium
→The dipole moment is 12 C m and the electric field is 5 N/C. If the angle is 150°, what is the torque?
Class 12 · Physics · Medium
→The dipole moment is 9 C m and the electric field is 8 N/C. If the angle is 60°, what is the torque?
Class 12 · Physics · Medium
→The dipole moment is 15 C m and the electric field is 4 N/C. If the angle is 30°, what is the torque?
Class 12 · Physics · Hard
→What is the safest first step in a difficult numerical problem on a dipole in a uniform external electric field?
Class 12 · Physics · Hard
→The dipole moment is directed from negative to positive. If the electric field is directed from positive to negative, what angle is between them?
Class 12 · Physics · Hard
→The angle between the dipole moment and the electric field has sine zero and cosine equal to one. Which position is this?
Class 12 · Physics · Hard
→The angle between the dipole moment and the electric field has sine zero and cosine equal to negative one. Which position is this?
Class 12 · Physics · Hard
→The angle between the dipole moment and the electric field has positive sine and zero cosine. Which conclusion is correct?
Class 12 · Physics · Hard
→If a dipole is parallel to the electric field, why does a small angular displacement tend to bring it back?
Class 12 · Physics · Hard
→If the dipole moment and electric field are opposite, why is the equilibrium position unstable even though the torque is zero?
Class 12 · Physics · Hard
→Why does the vector form of torque show that torque is zero when the dipole moment is parallel to the field?
Class 12 · Physics · Hard
→Which rule helps determine the direction of torque on a dipole in a uniform electric field?
Class 12 · Physics · Hard
→Why can the net force on a dipole be nonzero in a nonuniform electric field?
Class 12 · Physics · Hard
→Why does the centre of mass of a dipole not accelerate in a uniform electric field while the dipole can rotate?
Class 12 · Physics · Hard
→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 · Hard
→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 · Hard
→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 conclusion about potential energy be wrong?
Class 12 · Physics · Hard
→An electric dipole in a uniform field has zero net force but rotates. Which physical idea best explains this behavior?
Class 12 · Physics · Hard
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