SNC 1D1
Name: _____________
How to draw a Schematic Circuit Diagram
1. Start with drawing the electrical source first
2. Usually drawn next, are control devices like switches and fuses.
3. Any electrical loads are now drawn. Meters, like voltmeters and
ammeters, are drawn where specified.
All sources, controls, and loads are connected with conducting wires (lines) and
must start and end at the electrical sources
1. 1 cell, 1 switch, 1 motor
2. 3 cell battery, 1 fuse, 1 lamp
3. 1 lamp, fuse, variable DC power
supply, switch
4. 1 fuse, 1 motor, 1 lamp, 6 cell
battery
Parallel Circuit:
1. Draw the source, wires, and 1 of the loads in a series circuit
2. Branching from the load, create extra paths for the other loads in parallel
5. 1 cell, 1 switch, 2 lamps in
parallel
6. 1 cell, 1 fuse, 4 lamps in series
7. 3 cells in series, 1 switch, 1
motor
8. 4 cells in parallel, 1 fuse, 1 lamp
9. 3 cells in series, 1 switch, 1
fuse, 2 lamps in series
10. 2 cells in parallel, 1 fuse, 2
motors in parallel
11. 4 cells in series, 1 switch, 1
fuse, 2 lamps in parallel
12. 3 cells in parallel, 2 switches,
controlling light each – the
switches are in parallel, 2
motors in series