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Class 12 · Physics · Easy
→A plane surface is rotated in a uniform field and flux changes from maximum to zero. What happened to the angle between area vector and field?
Class 12 · Physics · Medium
→The distance from both a point charge and a dipole is doubled. Whose far field decreases more rapidly?
Class 12 · Physics · Medium
→A dipole has zero net charge. Why can its field still exist at a far point?
Class 12 · Physics · Medium
→When a dipole is placed in a non-uniform electric field, the net force may not be zero. What is the best reason?
Class 12 · Physics · Easy
→In which situation can flux through a plane surface be zero even though the electric field is not zero?
Class 12 · Physics · Medium
→Why is the field at a far axial point of a dipole taken along the dipole moment?
Class 12 · Physics · Hard
→Why is the field at a far equatorial point of a dipole opposite to the dipole moment?
Class 12 · Physics · Medium
→At a far axial point, the dipole field is sixty. What will be the equatorial field at the same distance?
Class 12 · Physics · Hard
→At the same distance, the equatorial field of a dipole is twenty. What will be the axial field?
Class 12 · Physics · Hard
→At a far axial point, the dipole field magnitude is forty at a certain distance. What will it be when the distance is doubled?
Class 12 · Physics · Medium
→A uniform electric field acts on a plane surface. If the surface is rotated so that flux changes from positive to negative, what has changed?
Class 12 · Physics · Hard
→In a uniform electric field, the dipole moment is exactly opposite to the field. Which statement is correct?
Class 12 · Physics · Hard
→In a uniform electric field, the angle between dipole moment and field is zero. What is the nature of this position?
Class 12 · Physics · Hard
→In a uniform electric field, net force on a dipole is zero, yet it can rotate. What is the reason?
Class 12 · Physics · Medium
→If the dipole moment is to remain the same while the charge magnitude is made four times, how should the separation change?
Class 12 · Physics · Medium
→In a dipole, the charge magnitude is made three times and the separation is made half. What will be the dipole moment compared with the initial value?
Class 12 · Physics · Easy
→A plane surface has its area vector toward east and the electric field toward west. What is the sign of flux?
Class 12 · Physics · Medium
→A plane surface is placed in a uniform electric field such that the angle between area vector and electric field is sixty degrees. If the surface is rotated so both become parallel, how will the flux change?
Class 12 · Physics · Medium
→In a difficult problem, flux is zero and a dipole is present. What is the safest order of analysis?
Class 12 · Physics · Easy
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