Conduction electrons move to the right in a certain wire. This indicates a) the

Question

Conduction electrons move to the right in a certain wire. This indicates
a) the current density and electric field both point right
b) the current density and electric field both point left
c) the current density points right and the electric field points left
d) the current density points left and the electric field points right
e) the current density points left but the direction of the electric field is unknown

Two wires made of the same material; have the same length by different diameters. They are connected in a series to a battery. The quantity that is the same for wires is:
a) the current
b) the current density
c) the electric field
d)the electron drift velocity

Explanation / Answer

b) the current density and electric field both point left <----------ans

since the movement of elctrons is to the right , so the force on them is to the right ,

so the field is to the left ,

a) the current <---------------ans

the current remains the same both ,

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