Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 870 · 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 circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) bulb (d) battery
2. 2.True or false: a small empty box is the symbol for an ammeter. (a) True (b) False
3. 3.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) diode (c) LED (d) motor
6. 6.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
7. 7.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) LED (c) wire (d) capacitor
9. 9.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
11. 11.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with A inside (c) triangle, bar and arrows (d) a circle with M inside
12. 12.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
13. 13.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with an X in it (c) a circle with a cross (d) a small empty box
14. 14.Which drawing is the symbol for a bulb? (a) a straight line (b) a dot where wires meet (c) triangle against a bar (d) a circle with an X in it
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) cell (c) bulb (d) switch
16. 16.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) motor (c) cell (d) voltmeter
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) diode (c) ammeter (d) motor
18. 18.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a small empty box (c) two or more cell symbols (d) a circle with A inside
19. 19.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) cell (c) battery (d) diode
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) resistor (c) motor (d) junction
21. 21.True or false: a plain rectangle is the symbol for a switch. (a) False (b) True
22. 22.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a dot where wires meet (c) a plain rectangle (d) a line lifted at a gap
23. 23.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a straight line (c) a circle with an X in it (d) many long-short pairs
24. 24.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
25. 25.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle against a bar (c) a circle with A inside (d) a small empty box
26. 26.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) battery (c) bulb (d) resistor
28. 28.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a circle with M inside (c) a line lifted at a gap (d) triangle, bar and arrows
29. 29.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
30. 30.Which drawing is the symbol for a junction? (a) a long and a short line (b) a line lifted at a gap (c) a dot where wires meet (d) two equal parallel lines
31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) ammeter (c) junction (d) bulb
32. 32.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) cell (c) bulb (d) switch
34. 34.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
35. 35.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
36. 36.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
37. 37.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
38. 38.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a circle with a cross (c) one tall, one short bar (d) a long and a short line
39. 39.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
40. 40.True or false: one tall, one short bar is the symbol for a motor. (a) False (b) True

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