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Class 12 · Physics · Medium
→A dipole in a uniform electric field has zero net force but may have nonzero torque. What is the correct reason?
Class 12 · Physics · Easy
→What does torque on a dipole in a uniform field change?
Class 12 · Physics · Easy
→If the charge magnitude remains constant, what should be increased to increase the dipole moment?
Class 12 · Physics · Medium
→What should be identified first when solving a problem about a dipole in a uniform external electric field?
Class 12 · Physics · Easy
→In a uniform electric field, in which direction does the force on the negative charge of a dipole act?
Class 12 · Physics · Easy
→In a uniform electric field, in which direction does the force on the positive charge of a dipole act?
Class 12 · Physics · Medium
→Why does an electric dipole rotate toward the parallel direction when it is slightly displaced from the opposite direction?
Class 12 · Physics · Easy
→If a small angular displacement causes the torque to bring the dipole back to the parallel direction, what kind of equilibrium is this?
Class 12 · Physics · Easy
→When an electric dipole is opposite or antiparallel to a uniform electric field, what type of equilibrium does it represent?
Class 12 · Physics · Easy
→When an electric dipole is parallel to a uniform electric field, what type of equilibrium does it represent?
Class 12 · Physics · Easy
→An electric dipole has a dipole moment of 3 C m and is placed in a field of 5 N/C. What is its torque when the dipole is perpendicular to the field?
Class 12 · Physics · Easy
→If the dipole moment is 5 C m, the electric field is 2 N/C, and the angle between them is 0°, what is the torque on the dipole?
Class 12 · Physics · Easy
→If dipole moment is two coulomb metre, field is four newton per coulomb, and the angle is ninety degrees, what is the torque?
Class 12 · Physics · Easy
→At ninety degrees between the dipole and field, the torque equals what?
Class 12 · Physics · Easy
→If a dipole is opposite to the field, what is the usual sign of its potential energy?
Class 12 · Physics · Easy
→If a dipole is parallel to the field, what is the usual sign of its potential energy?
Class 12 · Physics · Easy
→What does the torque acting on a dipole try to do?
Class 12 · Physics · Easy
→Which rule is useful for understanding the direction of torque?
Class 12 · Physics · Easy
→Electric dipole moment is what type of quantity?
Class 12 · Physics · Easy
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