-34-
38. Series-Parallel Connection 2
Build the circuit above. There are two ways to light the lamp (76) in this circuit. You can either press the switch (62), or
place the magnet (7) next to the reed switch (83) and press the press switch (61). Using the hotel analogy from the last
project, the reed switch (83) could represent the key card holder and the press switch (61) could be a light in the room.
But this room now has a master key card holder that only the employees (e.g. maids) at the hotel have keys for that turns
on all the lights in the room regardless of which switches are turned on or off in the room.
2nd level
2nd level
To Next Page