Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 656 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
2. 2.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) motor (c) cell (d) ammeter
3. 3.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) wire (c) diode (d) capacitor
5. 5.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
6. 6.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with a cross (c) one tall, one short bar (d) a circle with M inside
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
8. 8.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) bulb (c) battery (d) cell
10. 10.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) capacitor (c) junction (d) battery
12. 12.Which drawing is the symbol for a motor? (a) a circle with V inside (b) a plain rectangle (c) a circle with A inside (d) a circle with M inside
13. 13.True or false: a straight line is the symbol for a wire. (a) True (b) False
14. 14.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) LED (c) bulb (d) capacitor
16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) LED (c) wire (d) switch
17. 17.Which drawing is the symbol for a wire? (a) a straight line (b) a plain rectangle (c) two or more cell symbols (d) a circle with a cross
18. 18.Which drawing is the symbol for a diode? (a) a small empty box (b) a long and a short line (c) two equal parallel lines (d) triangle against a bar
19. 19.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with a cross (d) a circle with an X in it
20. 20.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
21. 21.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a long and a short line (c) a circle with a cross (d) a plain rectangle
22. 22.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
23. 23.Which drawing is the symbol for a switch? (a) a long and a short line (b) one tall, one short bar (c) a straight line (d) a line lifted at a gap
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) battery (c) cell (d) junction
25. 25.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) LED (c) switch (d) junction
27. 27.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
28. 28.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) voltmeter (c) wire (d) capacitor
30. 30.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) resistor (c) switch (d) bulb
32. 32.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a long and a short line (c) a circle with a cross (d) two equal parallel lines
33. 33.Which drawing is the symbol for an LED? (a) a circle with M inside (b) triangle, bar and arrows (c) triangle against a bar (d) two equal parallel lines
34. 34.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a circle with M inside (c) a dot where wires meet (d) a plain rectangle
35. 35.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
36. 36.True or false: a circle with A inside is the symbol for a resistor. (a) True (b) False
37. 37.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) two or more cell symbols (c) many long-short pairs (d) a small empty box
38. 38.Which drawing is the symbol for a cell? (a) a plain rectangle (b) two or more cell symbols (c) one tall, one short bar (d) triangle against a bar
39. 39.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) ammeter (c) junction (d) capacitor

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