Current Density

dI = J • dA = JdAcos(θ)

The equation by which we find out the differential current flow through the area dA describing the relationship between the current and current density

θ

Symbol that represents the angle between the area and the current density

I = ∫J•dA

Finding the total current passing through area dA

J = I/A

The simplest formula to find the current density

(n|q|Avd)/A

The elaborated formula to find the current density

n |q| vd

The final form of the current density formula

The charge is positive

The drift velocity here is in the same direction as the electrical field

The charge is negative

The drift velocity here is in the opposite direction of the electrical field

electrical field

The direction of the current density is in the direction of the ________________

Current

The current density is proportional to what

Area

The current density is inversely proportional to what

voltage

Electrical force in a conductor is provided by the electrical field, which is created when a _______ is applied across the conductor