Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 394 · 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 an X in it is the symbol for a cell. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) junction (c) diode (d) switch
3. 3.✏️ 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
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
5. 5.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
6. 6.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) capacitor (c) LED (d) bulb
8. 8.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) battery (c) wire (d) switch
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) wire (c) ammeter (d) junction
11. 11.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
12. 12.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with a cross (c) two or more cell symbols (d) many long-short pairs
13. 13.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) two or more cell symbols (c) a straight line (d) a circle with A inside
14. 14.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) motor (c) cell (d) junction
15. 15.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with a cross (c) two or more cell symbols (d) a circle with M inside
16. 16.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) a line lifted at a gap (c) a circle with A inside (d) two equal parallel lines
17. 17.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
19. 19.True or false: a circle with an X in it is the symbol for a switch. (a) True (b) False
20. 20.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
21. 21.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
22. 22.True or false: triangle, bar and arrows is the symbol for a motor. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) bulb (c) battery (d) capacitor
24. 24.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a long and a short line (c) a line lifted at a gap (d) many long-short pairs
25. 25.Which drawing is the symbol for a cell? (a) a circle with V inside (b) triangle, bar and arrows (c) a plain rectangle (d) a long and a short line
26. 26.Which drawing is the symbol for a diode? (a) a straight line (b) two equal parallel lines (c) triangle against a bar (d) a circle with a cross
27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) diode (c) voltmeter (d) LED
28. 28.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
29. 29.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) many long-short pairs (c) one tall, one short bar (d) a straight line
30. 30.Which drawing is the symbol for a wire? (a) a straight line (b) many long-short pairs (c) a circle with A inside (d) a circle with M inside
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) wire (c) LED (d) motor
32. 32.True or false: a circle with A inside is the symbol for a wire. (a) True (b) False
33. 33.True or false: a dot where wires meet is the symbol for an ammeter. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) battery (c) switch (d) diode
35. 35.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) ammeter (c) junction (d) bulb
36. 36.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a line lifted at a gap (c) a dot where wires meet (d) a small empty box
37. 37.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with a cross (c) two equal parallel lines (d) a circle with A inside
38. 38.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) battery (d) motor
39. 39.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
40. 40.Which drawing is the symbol for a cell? (a) a circle with V inside (b) one tall, one short bar (c) two equal parallel lines (d) two or more cell symbols

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