Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 218 · 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 a circle with an X in it? (a) bulb (b) wire (c) junction (d) battery
2. 2.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) bulb (c) battery (d) motor
3. 3.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a long and a short line (c) two or more cell symbols (d) a small empty box
4. 4.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
5. 5.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
6. 6.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a long and a short line (c) a circle with M inside (d) one tall, one short bar
7. 7.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
8. 8.True or false: two or more cell symbols is the symbol for a wire. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) bulb (c) capacitor (d) LED
10. 10.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
11. 11.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) switch (c) capacitor (d) LED
14. 14.True or false: a circle with V inside is the symbol for a cell. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) capacitor (c) voltmeter (d) bulb
16. 16.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a long and a short line (c) a small empty box (d) triangle against a bar
17. 17.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) battery (c) resistor (d) bulb
18. 18.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) diode (d) cell
20. 20.True or false: a small empty box is the symbol for a voltmeter. (a) False (b) True
21. 21.True or false: a circle with an X in it is the symbol for a switch. (a) True (b) False
22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
23. 23.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) bulb (c) voltmeter (d) resistor
25. 25.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a circle with M inside (c) a small empty box (d) a circle with V inside
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) capacitor (c) junction (d) battery
27. 27.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
28. 28.Which drawing is the symbol for a battery? (a) a circle with V inside (b) a circle with M inside (c) many long-short pairs (d) a long and a short line
29. 29.Which drawing is the symbol for a switch? (a) triangle against a bar (b) a circle with A inside (c) a circle with an X in it (d) a line lifted at a gap
30. 30.Which drawing is the symbol for a battery? (a) a circle with M inside (b) two or more cell symbols (c) triangle, bar and arrows (d) a circle with a cross
31. 31.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) wire (c) motor (d) cell
33. 33.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
34. 34.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) two equal parallel lines (c) triangle against a bar (d) triangle, bar and arrows
35. 35.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) bulb (d) LED
37. 37.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a line lifted at a gap (c) two or more cell symbols (d) a dot where wires meet
38. 38.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a circle with A inside (c) two or more cell symbols (d) a long and a short line
39. 39.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
40. 40.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a plain rectangle (c) two or more cell symbols (d) triangle against a bar

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