Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 443 · 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.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
3. 3.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) bulb (c) switch (d) wire
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) LED (c) battery (d) diode
6. 6.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a long and a short line (c) a circle with M inside (d) two equal parallel lines
7. 7.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
8. 8.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
9. 9.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) triangle against a bar (c) a straight line (d) a circle with an X in it
10. 10.Which drawing is the symbol for a battery? (a) many long-short pairs (b) one tall, one short bar (c) a small empty box (d) triangle, bar and arrows
11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) junction (c) cell (d) ammeter
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) capacitor (c) wire (d) motor
13. 13.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a straight line (c) triangle, bar and arrows (d) a circle with an X in it
14. 14.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with A inside (d) triangle against a bar
15. 15.Which drawing is the symbol for a motor? (a) a circle with V inside (b) a dot where wires meet (c) a circle with M inside (d) one tall, one short bar
16. 16.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
17. 17.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) battery (c) capacitor (d) LED
19. 19.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) wire (d) switch
21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) bulb (c) cell (d) diode
22. 22.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
23. 23.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a circle with M inside (c) a circle with a cross (d) a dot where wires meet
24. 24.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a plain rectangle (c) two equal parallel lines (d) a circle with M inside
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) battery (c) cell (d) motor
26. 26.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
27. 27.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
28. 28.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
29. 29.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
30. 30.True or false: a small empty box is the symbol for a capacitor. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) wire (c) capacitor (d) cell
32. 32.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) junction (c) bulb (d) cell
33. 33.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) ammeter (c) wire (d) motor
35. 35.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
36. 36.Which drawing is the symbol for an LED? (a) triangle against a bar (b) two equal parallel lines (c) two or more cell symbols (d) triangle, bar and arrows
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) junction (c) motor (d) diode
38. 38.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
39. 39.Which drawing is the symbol for a cell? (a) a long and a short line (b) many long-short pairs (c) two or more cell symbols (d) a line lifted at a gap
40. 40.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True

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