Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 579 · 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.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
2. 2.Which drawing is the symbol for a cell? (a) a plain rectangle (b) two or more cell symbols (c) a circle with an X in it (d) one tall, one short bar
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) capacitor (c) ammeter (d) bulb
4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) battery (c) LED (d) junction
5. 5.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) ammeter (c) cell (d) voltmeter
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
7. 7.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) battery (c) diode (d) resistor
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
9. 9.True or false: a small empty box is the symbol for a battery. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) switch (c) wire (d) resistor
11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) switch (d) junction
12. 12.Which drawing is the symbol for a motor? (a) two equal parallel lines (b) a dot where wires meet (c) a circle with M inside (d) two or more cell symbols
13. 13.True or false: a circle with V inside is the symbol for an LED. (a) False (b) True
14. 14.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
15. 15.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) battery (c) LED (d) bulb
17. 17.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
18. 18.Which drawing is the symbol for a bulb? (a) a small empty box (b) a dot where wires meet (c) a circle with a cross (d) a line lifted at a gap
19. 19.✏️ 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
20. 20.Which drawing is the symbol for a diode? (a) a straight line (b) a circle with an X in it (c) triangle against a bar (d) a circle with A inside
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) ammeter (c) battery (d) bulb
22. 22.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
23. 23.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a circle with M inside (c) a long and a short line (d) a dot where wires meet
24. 24.Which drawing is the symbol for a capacitor? (a) a small empty box (b) a circle with an X in it (c) triangle, bar and arrows (d) two equal parallel lines
25. 25.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) resistor (c) bulb (d) capacitor
27. 27.True or false: a circle with A inside is the symbol for a capacitor. (a) True (b) False
28. 28.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) junction (c) battery (d) cell
30. 30.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
31. 31.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with an X in it (c) a straight line (d) a circle with A inside
32. 32.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) triangle, bar and arrows (c) a straight line (d) one tall, one short bar
33. 33.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a circle with M inside (c) triangle, bar and arrows (d) one tall, one short bar
34. 34.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
35. 35.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) battery (c) resistor (d) switch
37. 37.Which drawing is the symbol for a wire? (a) a circle with V inside (b) a straight line (c) triangle against a bar (d) triangle, bar and arrows
38. 38.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
39. 39.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
40. 40.Which drawing is the symbol for a junction? (a) a circle with M inside (b) two or more cell symbols (c) a dot where wires meet (d) a small empty box

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