Conduction electrons move to the right in a certain wire. This indicates that:
A) the current density points left but the direction of the electric field is unknown
B) the current density and electric field both point right
C) the current density and electric field both point left
D) the current density points right and the electric field points left
E) the current density points left and the electric field points right
Answer: C) the current density and electric field both point left
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If 
what is the power supplied to the circuit by 
?
A. 4.0 W
B. 8.0 W
C. 12 W
D. 16 W
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