3. Identify each statement as true or false. Current equals the product of voltage and resistance for an ohmic device. The greater the length of a wire, the higher the resistance of the wire. The potential difference produced by a battery varies depending on the circuit in which it is used. The power produced by a battery varies depending on the circuit in which it is used. The thicker an electrical wire, the higher the resistance of the wire. True False

A) Current equals the product of voltage and resistance for an ohmic device. False (current is voltage divided by resistance)

B) The greater the length of a wire, the higher the resistance of the wire. True (Resistivity is directly proportional to lenght and inversely proportional to the cross sectional area)

C) The potential difference produced by a battery varies depending on the circuit in which it is used. False (the potential difference of a battery is constant, the current drawn is what varies with circuit)

D) The thicker an electrical wire, the higher the resistance of the wire. False ( Resistivity is inversely proportional to the cross sectional area of the conductor).

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray