1. Is there any difference between the static charges generated by rubbing rods with fur or silk and the charges that flow (from a battery) through wires in an electric circuit? Give evidence for your answer.
2. For the circuit on the right, indicate whether the statements below are TRUE or FALSE. If a statement is TRUE, briefly describe the evidence from this lab that supports this statement. If a statement is FALSE, give a correct statement, and briefly describe the evidence from this lab that supports this new statement.
a. The current flows from the battery, through wire A, through the bulb, and then back to the battery through wire B
b. Since the current is used up by the bulb, the current in wire B is smaller than the current in wire A
c. The current flows toward the bulb in both wires A and B
d. If wire B is disconnected, but wire A is left connected, the bulb will still light, but if wire A is disconnected and wire B is left connected, the bulb will not light.
e. A current sensor will read the same magnitude if connected to measure the current in wire A, and then connected to measure the current in wire B.
3. Name the circuit element represented by each of the following symbols:
