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Class 12 · Physics · Hard
→Dipole moment is along the electric field. Why is torque zero and the position stable?
Class 12 · Physics · Hard
→The dipole moment is opposite to the electric field. Why does the dipole rotate after a small disturbance?
Class 12 · Physics · Medium
→Flux through a surface is zero, but the electric field is non-zero. In which situation is this possible?
Class 12 · Physics · Medium
→The flux through a plane surface is half its maximum value. What can be the angle between the electric field and the area vector?
Class 12 · Physics · Medium
→Flux through a plane surface is maximum and positive. If the surface is reversed in the same electric field, what will the flux become?
Class 12 · Physics · Medium
→The area vector of a plane surface makes an angle of 120° with the electric field. What is the sign of the electric flux?
Class 12 · Physics · Expert
→In a difficult problem, net flux is zero and a dipole is present. What is the safest order of analysis?
Class 12 · Physics · Medium
→What is the fundamental difference between electric field and electric flux?
Class 12 · Physics · Medium
→A dipole is in stable equilibrium parallel to the electric field. How is its potential energy?
Class 12 · Physics · Hard
→A dipole is placed perpendicular to a uniform electric field. Which statement about net force and torque is correct?
Class 12 · Physics · Hard
→Net force on a dipole in a uniform field is zero. Does it mean forces on both charges are zero?
Class 12 · Physics · Hard
→If dipole moment becomes three times and the distance of a far point becomes three times, what fraction of the far field remains?
Class 12 · Physics · Hard
→For the far axial field of a dipole, the dipole moment is doubled and the distance is doubled. What happens to the field?
Class 12 · Physics · Hard
→Why does the far field of a dipole decrease faster than the field of a point charge?
Class 12 · Physics · Medium
→When a surface is perpendicular to the electric field and the area vector is along the field, why is flux maximum?
Class 12 · Physics · Easy
→If a surface is parallel to the electric field, what is the angle between the area vector and the electric field?
Class 12 · Physics · Medium
→Surface area becomes double, electric field becomes triple and angular factor becomes half. What happens to the flux?
Class 12 · Physics · Medium
→If electric field is not perpendicular to a surface, what is the most common mistake while calculating flux?
Class 12 · Physics · Medium
→A dipole is antiparallel to the field. If slightly rotated, why does it not return?
Class 12 · Physics · Medium
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