Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 244 · 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 motor? (a) many long-short pairs (b) a plain rectangle (c) triangle, bar and arrows (d) a circle with M inside
2. 2.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a circle with a cross (c) two or more cell symbols (d) a dot where wires meet
3. 3.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a circle with A inside (c) a circle with V inside (d) triangle, bar and arrows
4. 4.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
5. 5.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) voltmeter (c) cell (d) wire
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) junction (c) cell (d) wire
9. 9.Which drawing is the symbol for a cell? (a) a long and a short line (b) a straight line (c) a circle with V inside (d) two equal parallel lines
10. 10.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
11. 11.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
12. 12.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
13. 13.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
14. 14.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
15. 15.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with an X in it (c) a line lifted at a gap (d) one tall, one short bar
16. 16.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) battery (c) voltmeter (d) bulb
18. 18.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
19. 19.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) wire (c) cell (d) switch
21. 21.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a long and a short line (c) a circle with M inside (d) a circle with an X in it
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) resistor (c) junction (d) voltmeter
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) ammeter (c) bulb (d) switch
24. 24.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
25. 25.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a small empty box (c) a circle with A inside (d) many long-short pairs
26. 26.True or false: a circle with an X in it is the symbol for a voltmeter. (a) True (b) False
27. 27.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
28. 28.Which drawing is the symbol for a diode? (a) a circle with a cross (b) triangle, bar and arrows (c) a circle with M inside (d) triangle against a bar
29. 29.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
30. 30.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
31. 31.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) two or more cell symbols (c) many long-short pairs (d) one tall, one short bar
32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) cell (c) voltmeter (d) wire
33. 33.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) battery (c) capacitor (d) voltmeter
34. 34.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) one tall, one short bar (c) a circle with A inside (d) a circle with an X in it
35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) bulb (c) battery (d) wire
36. 36.True or false: two equal parallel lines is the symbol for a wire. (a) False (b) True
37. 37.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
38. 38.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a line lifted at a gap (c) many long-short pairs (d) a small empty box
39. 39.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
40. 40.Which drawing is the symbol for an LED? (a) a circle with V inside (b) triangle, bar and arrows (c) two or more cell symbols (d) a long and a short line

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