Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 906 · 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.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) two or more cell symbols (c) one tall, one short bar (d) many long-short pairs
2. 2.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a dot where wires meet (c) a long and a short line (d) triangle, bar and arrows
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) resistor (c) battery (d) motor
4. 4.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
5. 5.Which drawing is the symbol for a motor? (a) a straight line (b) one tall, one short bar (c) a circle with M inside (d) triangle against a bar
6. 6.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) diode (c) capacitor (d) bulb
7. 7.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
8. 8.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) two equal parallel lines (c) a small empty box (d) a circle with A inside
9. 9.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a circle with V inside (c) a long and a short line (d) a circle with A inside
10. 10.True or false: a straight line is the symbol for a wire. (a) True (b) False
11. 11.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
13. 13.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a straight line (c) many long-short pairs (d) a small empty box
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) voltmeter (c) battery (d) wire
15. 15.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) ammeter (d) battery
17. 17.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) cell (c) diode (d) junction
18. 18.True or false: a straight line is the symbol for an ammeter. (a) True (b) False
19. 19.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) triangle against a bar (c) a circle with an X in it (d) two equal parallel lines
20. 20.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) wire (c) switch (d) ammeter
21. 21.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
22. 22.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) diode (c) cell (d) LED
24. 24.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) battery (c) resistor (d) motor
25. 25.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a line lifted at a gap (c) a circle with V inside (d) a long and a short line
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) diode (c) motor (d) voltmeter
27. 27.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
28. 28.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) capacitor (c) battery (d) motor
30. 30.True or false: a circle with A inside is the symbol for a resistor. (a) False (b) True
31. 31.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
32. 32.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) triangle against a bar (c) a circle with a cross (d) two equal parallel lines
33. 33.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
34. 34.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) ammeter (c) resistor (d) diode
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) capacitor (c) cell (d) switch
37. 37.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
38. 38.✏️ 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
39. 39.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
40. 40.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True

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