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Class 12 · Physics · Hard
→For the same far distance, how is the axial field of a dipole related to the equatorial field?
Class 12 · Physics · Hard
→At a far equatorial point of a dipole, if distance is tripled, what fraction of the field approximately remains?
Class 12 · Physics · Hard
→At a far point on the axial line of a dipole, if distance is doubled, what does the field approximately become?
Class 12 · Physics · Hard
→A dipole has zero net charge, yet why can it be pulled in a non-uniform field?
Class 12 · Physics · Hard
→A dipole has zero net force in a uniform electric field. If the field is made non-uniform, why can a net force appear?
Class 12 · Physics · Hard
→Why is external work needed to rotate a dipole from parallel to perpendicular orientation in an electric field?
Class 12 · Physics · Hard
→Dipole moment is antiparallel to the field. Torque is zero at that instant, yet why is it not stable equilibrium?
Class 12 · Physics · Medium
→An electric dipole is placed in a uniform electric field with its dipole moment at 60° to the field. Why is the turning effect nonzero?
Class 12 · Physics · Medium
→The dipole moment becomes three times its original value, the electric field becomes half its original value, and the angle remains unchanged. What is the new torque compared with the original torque?
Class 12 · Physics · Medium
→The dipole moment is doubled and the uniform electric field is tripled. If the angle between them remains unchanged, what happens to the torque on the dipole?
Class 12 · Physics · Medium
→If the angle between the electric field and the area vector changes from 30° to 60°, how does the flux change when the field magnitude and area remain constant?
Class 12 · Physics · Medium
→Why does only the component of the electric field normal to a surface contribute to electric flux?
Class 12 · Physics · Medium
→Why is the convention of taking the area vector outward useful for a closed surface?
Class 12 · Physics · Medium
→Why is it necessary to choose an area vector for an open surface when calculating electric flux?
Class 12 · Physics · Easy
→For a plane surface, the area vector points upward while the electric field points downward. What is the sign of the electric flux?
Class 12 · Physics · Medium
→A closed surface encloses the positive charge of a dipole, while the negative charge lies outside it. The surface is then enlarged to enclose both charges. What happens to the net electric flux?
Class 12 · Physics · Medium
→A complete electric dipole is inside a closed surface. The net flux is zero, but will the electric field be zero everywhere on the surface?
Class 12 · Physics · Medium
→A closed surface is changed from a sphere to an irregular shape while the enclosed net charge remains the same. Why does the total flux not change?
Class 12 · Physics · Medium
→A charge inside a closed surface is moved from the centre to a position near the surface. What happens to the total flux?
Class 12 · Physics · Medium
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