Phy 220 Prelab #4

Answer the following questions concerning current/voltage characteristics and Ohm's Law. 

1.  Write a verbal definition of Ohm's Law (not an equation).

2.  You are given a plot of Voltage versus Current for a circuit element.  The plot shows a linear relationship between these two quantities.  How do you find the value of the resistance of the circuit element?

3.  An incandescent light bulb draws 0.5 A when hooked to the 120 V wall socket.  What is the resistance of the filament of the bulb?

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