1) How does the parallel circuit compare to the series circuit?

2) What happens when you break a parallel circuit (try it out in the SIM if you need to!)? How would this property be useful when designing circuits? 3) What are the advantages and disadvantages of series and parallel circuits?

Small computer speakers often have power supplies that give 12V DC at 200 mA. How much charge flows through the circuit in 1 hour and how much energy is used to deliver this charge?

2. Our speakers use 200 mA of current of maximum volume. The voltage is 12 V. The current is used to produce a magnet which is used to move the speaker cone. Find the resistance of the electromagnet.

3. Electrons are the _______________ that _______________ through _______________.

4. Historically thought _______________ charges move.

5. _______________ current is the _______________ flow of _______________ charges.

6. Flows from _______________ terminal and into _______________ terminal.

7. _______________ current flows the _______________ way.

8. _______________ signals travel near _______________ of _______________, but _______________ travel much _______________.

9. Each new electron _______________ one ahead of it, so current is actually like _______________.

10. Device that offers _______________ to _______________ of charges.

11. _______________ wire has very _______________ resistance.