The electric field vector at any cross-section of a conductor and the current density vector both have the same direction
A steady current flows in a metallic conductor of non uniform cross section .Explain which of these quantities is constant along the conductor and why? :current, current density, electric field and drift speed?
In spite of having both magnitude and direction why is electric current a scalar quantity not a vector quantity.
Five students A, B, C, D and E are asked to draw the direction of electric field at any point on the given arrangement of electric field lines. Who among these students drew the electric field vector (representing its direction) correctly?