C) parallel D) series None of the E) above Explanation: The statements all describe a series circuit. 11) The voltage in each path is the same. There is more than one path for electrons to reach resistors. The total current in a circuit will increase when a path is added. These statements are all true for ___________ circuits. A) closed B) open C) parallel D) series None of the E) Explanation: These statements are true for parallel circuits. 12) Why might an electromagnet be used to pick up old cars in junk yards? Electromagnets are inexpensive and easily create A) revenue. Electromagnets are powerful and can be turned on and B) off easily. Electromagnets are easy to operate and can be run by C) cheap labor. Electromagnets are versatile and can pick up any metallic objects D) in the yard. None of the E) above Explanation: Electromagnets are powerful and can be turned on and off easily. They are quite expensive and only pick up cars of iron or steel. All of the following use an electric motor, EXCEPT 13) A) radio. B) blender. hair C) dryer. electric D) fan.
C) parallel D) series E) None of the above Explanation: The statements all describe a series circuit. 11) The voltage in each path is the same. There is more than one path for electrons to reach resistors. The total current in a circuit will increase when a path is added. These statements are all true for ___________ circuits. A) closed B) open C) parallel D) series E) None of the Explanation: These statements are true for parallel circuits. 12) Why might an electromagnet be used to pick up old cars in junk yards? A) Electromagnets are inexpensive and easily create revenue. B) Electromagnets are powerful and can be turned on and off easily. C) Electromagnets are easy to operate and can be run by cheap labor. D) Electromagnets are versatile and can pick up any metallic objects in the yard. E) None of the above Explanation: Electromagnets are powerful and can be turned on and off easily. They are quite expensive and only pick up cars of iron or steel. 13) All of the following use an electric motor, EXCEPT A) radio. B) blender. C) hair dryer. D) electric fan.
Standards%207%208%209%2010%20answer%20key.docx