Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 44 · 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 one tall, one short bar? (a) motor (b) battery (c) bulb (d) cell
2. 2.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
3. 3.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
4. 4.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a circle with M inside (c) triangle, bar and arrows (d) a dot where wires meet
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) resistor (c) wire (d) battery
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) wire (c) resistor (d) motor
8. 8.True or false: a small empty box is the symbol for an LED. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) motor (c) junction (d) battery
10. 10.Which drawing is the symbol for a diode? (a) a circle with A inside (b) triangle against a bar (c) two or more cell symbols (d) a straight line
11. 11.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
12. 12.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a circle with an X in it (c) a circle with V inside (d) triangle, bar and arrows
13. 13.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
14. 14.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with A inside (c) triangle, bar and arrows (d) a circle with a cross
15. 15.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a straight line (c) a long and a short line (d) a circle with V inside
16. 16.True or false: a straight line is the symbol for a wire. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) switch (d) capacitor
18. 18.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a straight line (c) a small empty box (d) a line lifted at a gap
19. 19.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) capacitor (c) motor (d) battery
21. 21.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a line lifted at a gap (c) a long and a short line (d) triangle against a bar
22. 22.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
23. 23.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
24. 24.True or false: triangle, bar and arrows is the symbol for a junction. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) bulb (c) LED (d) wire
26. 26.True or false: a dot where wires meet is the symbol for a cell. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) wire (c) motor (d) junction
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) battery (c) bulb (d) ammeter
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) LED (c) battery (d) wire
31. 31.Which drawing is the symbol for an ammeter? (a) a small empty box (b) a circle with M inside (c) a circle with A inside (d) a dot where wires meet
32. 32.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
33. 33.True or false: a dot where wires meet is the symbol for an LED. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) cell (c) bulb (d) diode
35. 35.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) capacitor (c) battery (d) junction
36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) LED (c) wire (d) resistor
37. 37.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) one tall, one short bar (c) a plain rectangle (d) a circle with a cross
38. 38.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a circle with V inside (c) a plain rectangle (d) a circle with A inside
39. 39.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) diode (c) capacitor (d) wire
40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False

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