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Class 12 · Physics · Medium
→A positive charge is placed at the centre of a cube. By symmetry, what fraction of the total flux passes through one face?
Class 12 · Physics · Hard
→A closed surface contains a positive net charge, while several large negative charges are outside it. What is the sign of the net flux?
Class 12 · Physics · Medium
→The flux through a surface is initially positive. If only the direction of the area vector is reversed, what will be the new flux?
Class 12 · Physics · Medium
→A plane surface has area 6 m² and an electric field of 8 N/C. If the angle between the area vector and the field is 60°, what is the electric flux?
Class 12 · Physics · Hard
→In a difficult combined question on electric flux and a dipole, what is the most useful first decision?
Class 12 · Physics · Hard
→What is the most useful distinction while remembering the axial and equatorial results of a dipole field?
Class 12 · Physics · Medium
→Why can the sign of flux change when area vector direction is changed for an open surface?
Class 12 · Physics · Medium
→How can electric flux be positive or negative even though it is a scalar?
Class 12 · Physics · Hard
→Why must external work be done to rotate a dipole from stable to unstable equilibrium?
Class 12 · Physics · Medium
→If potential energy of a dipole is maximum, what will be its orientation?
Class 12 · Physics · Medium
→If potential energy of a dipole is minimum, in which direction is its dipole moment?
Class 12 · Physics · Medium
→If torque on a dipole in a uniform electric field is zero, which position is possible?
Class 12 · Physics · Medium
→If dipole moment is stated zero but equal opposite charges have non-zero separation, what is the issue in the statement?
Class 12 · Physics · Easy
→For a closed surface, what sign rule follows from taking the area vector outward?
Class 12 · Physics · Medium
→If flux through a surface is negative and the area vector of the same surface is reversed, what happens to the flux?
Class 12 · Physics · Hard
→If dipole moment is opposite to electric field, why is the position unstable after a small disturbance?
Class 12 · Physics · Medium
→Why does a dipole tend to return when slightly rotated from the position aligned with the field?
Class 12 · Physics · Medium
→Why is it not necessary for net force on a dipole to remain zero in a non-uniform electric field?
Class 12 · Physics · Medium
→Why can a dipole rotate in a uniform electric field even though net force on it is zero?
Class 12 · Physics · Medium
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