Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 410 · 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 switch. (a) True (b) False
2. 2.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a line lifted at a gap (c) a circle with A inside (d) a circle with an X in it
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
4. 4.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) junction (c) diode (d) bulb
6. 6.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) ammeter (c) cell (d) motor
8. 8.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a line lifted at a gap (c) a circle with M inside (d) a small empty box
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
10. 10.True or false: a straight line is the symbol for a junction. (a) False (b) True
11. 11.Which drawing is the symbol for a motor? (a) two equal parallel lines (b) a circle with M inside (c) many long-short pairs (d) triangle, bar and arrows
12. 12.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) diode (c) resistor (d) battery
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) switch (c) voltmeter (d) ammeter
15. 15.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
16. 16.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) triangle, bar and arrows (c) two equal parallel lines (d) a dot where wires meet
17. 17.True or false: two or more cell symbols is the symbol for a wire. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) resistor (c) switch (d) LED
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) cell (c) battery (d) voltmeter
20. 20.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) diode (c) motor (d) cell
22. 22.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
23. 23.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
24. 24.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
25. 25.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a circle with a cross (c) triangle, bar and arrows (d) a long and a short line
26. 26.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a circle with A inside (c) many long-short pairs (d) a long and a short line
27. 27.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
28. 28.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a straight line (c) a circle with M inside (d) triangle, bar and arrows
29. 29.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) a circle with V inside (c) two equal parallel lines (d) one tall, one short bar
30. 30.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
31. 31.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
32. 32.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with V inside (c) a straight line (d) one tall, one short bar
33. 33.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a long and a short line (c) triangle, bar and arrows (d) a circle with M inside
34. 34.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
35. 35.True or false: a straight line is the symbol for a wire. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) voltmeter (c) cell (d) motor
37. 37.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) battery (c) voltmeter (d) switch
38. 38.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
39. 39.True or false: a circle with V inside is the symbol for a wire. (a) True (b) False
40. 40.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) a circle with M inside (c) a straight line (d) a dot where wires meet

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