A list of terms to define  Term list with definitions 
Problem 1: a. Find the current in this circuit: b. How much power is delivered to the resistor? 
Problem 2: Use the two circuits shown to fill in the table below.
Total resistance: 
Total resistance: 
For each circuit element find:  A  B  C  D  E 
current  
voltage drop  
power 
Total resistance: 
Total resistance: 
For each circuit element find:  A  B  C  D  E 
current  
voltage drop  
power 
Problem 4: Which electric device has more resistance? Explain your reasoning.
Problem 5: In the lab you take a resistor and connect it to a variable voltage source. Recording voltage and current, your data table looks like this: When a graph of V vs. I is made, what is the value and interpretation of the slope? 

Problem 6: Power is equal to current times voltage, so power lines could be high voltage or high current and still transfer power. Why do we always use high voltage? (Hint: Substitue Ohm's law into the power equation.)