Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 470 · 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 wire? (a) one tall, one short bar (b) a straight line (c) triangle against a bar (d) two equal parallel lines
2. 2.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a circle with A inside (c) a straight line (d) a line lifted at a gap
3. 3.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) many long-short pairs (c) triangle, bar and arrows (d) a circle with V inside
4. 4.Which drawing is the symbol for a battery? (a) a long and a short line (b) a circle with M inside (c) two or more cell symbols (d) a circle with A inside
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) motor (c) cell (d) ammeter
6. 6.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
9. 9.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) triangle against a bar (c) a plain rectangle (d) one tall, one short bar
10. 10.Which drawing is the symbol for an LED? (a) a circle with a cross (b) triangle, bar and arrows (c) a straight line (d) a circle with M inside
11. 11.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) resistor (c) cell (d) capacitor
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) motor (c) bulb (d) voltmeter
13. 13.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
14. 14.Which drawing is the symbol for a diode? (a) a circle with M inside (b) triangle, bar and arrows (c) a line lifted at a gap (d) triangle against a bar
15. 15.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) two or more cell symbols (c) a circle with V inside (d) a dot where wires meet
16. 16.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) cell (c) bulb (d) motor
18. 18.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with A inside (c) a circle with a cross (d) a small empty box
19. 19.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
20. 20.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
21. 21.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
22. 22.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) ammeter (c) bulb (d) LED
24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
25. 25.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
26. 26.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a small empty box (c) a circle with M inside (d) triangle, bar and arrows
27. 27.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a dot where wires meet (c) a circle with an X in it (d) a plain rectangle
28. 28.True or false: a circle with an X in it is the symbol for a wire. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) resistor (c) voltmeter (d) LED
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) switch (c) resistor (d) diode
31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) battery (c) bulb (d) LED
32. 32.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) wire (c) battery (d) voltmeter
33. 33.True or false: a circle with a cross is the symbol for a battery. (a) False (b) True
34. 34.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) resistor (c) motor (d) cell
36. 36.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a straight line (c) a circle with a cross (d) a dot where wires meet
37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) junction (c) cell (d) LED
38. 38.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
39. 39.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
40. 40.True or false: triangle, bar and arrows is the symbol for a battery. (a) False (b) True

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