Consider positive and negative charge (all of equal magnitude) moving horizontally through two conductor A and B The magnitude of current is ……..in A and ……. In B

A charge of magnitude q flows through the conductor in time 't' . The current through the conductor is

The negatively charged particle considered as a free particle moving in a metallic conductor.

How does the magnitude of magnetic field depend on the current through a conductor ?

Positive and negative charges of equal magnitude lie along the symmetry axis of a cylinder. The distance from the positive charge to the left - end cap of the cylinder is the same as the distance from the negative charge to the right - end cap. What is the flux of the electric field through the closed cylinder ?

Positive and negative charges of equal magnitude lie along the symmetry axis of a cylinder. The distance from the positive charge to the left - end cap of the cylinder is the same as the distance from the negative charge to the right - end cap. What is the sign of the flux through the right - end cap of the cylinder ?

Positive and negative charges of equal magnitude lie along the symmetry axis of a cylinder. The distance from the positive charge to the left - end cap of the cylinder is the same as the distance from the negative charge to the right - end cap. What is the flux of the electric field through the closed cylinder ?

Following figures show four situations in which positive and negative charges move horizontaly through a region and give the rate at which each charge moves. Rank the situations according to the effective current through the region greatest first.