1. What is a resistor?

a. an element that stores current.

b. an substance that conducts electricity.

c. a metal that stores heat?

 


2. What unit is resistance measured in?

a. amps.

b. volts.

c. kilo ohms.

 


3. Why does wire heat up as current passes through?

a. the current causes friction.

b. the electron flow is too fast.

c. both of these.

 


4. What characteristic of inductor coils enable them to store current?

a. their widely spaced terminals.

b. their magnetic attraction.

c. their magnetic fields?

 


5. A light bulb is basicly a resistor?

a. false.

b. true.

c. if it is insulated.

 


6. How do capacitors store voltage?

a. saving it in a plate.

b. saves it by packing it into plates

c. saves it between two metal plates.

 


7. Resistors in series are like one big resistor.?

a. false.

b. true.

c. both of these

 


8. Which wire has the most resistance?

a. a thick copper wire.

b. a thick steel wire.

c. a very thin copper wire.

 


9. Connecting the ends of 2 resistors across a battery is which configurations?

a. series.

b. parralel.

c. series-parallel.

 


10. What makes a wire hotter??

a. low current low voltage.

b. low current high voltage.

c. high current high voltage?