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Class 12 · Physics
→In a difficult problem, flux is zero and a dipole is present. What is the safest order of analysis?
Class 12 · Physics
→What is the key difference between electric flux and electric field?
Class 12 · Physics
→A dipole is placed parallel to the field. If it is in stable equilibrium, how is its potential energy?
Class 12 · Physics
→A dipole is placed perpendicular to a uniform electric field. Which statement about net force and torque is correct?
Class 12 · Physics
→Does zero net force on a dipole in a uniform field mean that forces on both charges are zero?
Class 12 · Physics
→If net charge inside a closed surface is negative, but many positive charges are outside the surface, what will be the sign of net flux?
Class 12 · Physics
→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
→For the far axial field of a dipole, dipole moment is doubled and distance is doubled. What happens to the field?
Class 12 · Physics
→Why is the distance dependence of far field of a dipole different from that of a point charge?
Class 12 · Physics
→If a surface is perpendicular to the electric field and the area vector is along the field, why is flux maximum?
Class 12 · Physics
→If a surface is parallel to the electric field, what is the angle between area vector and electric field?
Class 12 · Physics
→Area of a surface is doubled and electric field is tripled, but the angular factor becomes half. How many times does the flux become?
Class 12 · Physics
→If electric field is not perpendicular to a surface, what is the most common mistake while finding flux?
Class 12 · Physics
→Gauss law gives total flux. Why can the field at every point on an asymmetric surface not be found directly from it?
Class 12 · Physics
→A closed surface has zero net charge inside, but contains a dipole. What does correct use of Gauss law tell?
Class 12 · Physics
→A dipole is antiparallel to the electric field. If it is slightly rotated, why does it not return?
Class 12 · Physics
→A dipole is parallel to the electric field. If it is slightly rotated, why does it tend to return?
Class 12 · Physics
→Net force on a dipole in a uniform field is zero. Yet why does its energy depend on angle?
Class 12 · Physics
→Why does a non-polar molecule have no permanent dipole moment without an external field?
Class 12 · Physics
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