Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 861 · 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 cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
2. 2.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
3. 3.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
4. 4.True or false: a circle with an X in it is the symbol for a diode. (a) False (b) True
5. 5.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
6. 6.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) a circle with a cross (d) a circle with M inside
7. 7.Which drawing is the symbol for a battery? (a) triangle against a bar (b) one tall, one short bar (c) a long and a short line (d) many long-short pairs
8. 8.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a dot where wires meet (c) a small empty box (d) a circle with M inside
9. 9.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
11. 11.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) many long-short pairs (c) a circle with an X in it (d) triangle against a bar
12. 12.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) one tall, one short bar (c) a circle with A inside (d) a circle with V inside
13. 13.True or false: triangle, bar and arrows is the symbol for a switch. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) junction (c) cell (d) voltmeter
15. 15.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with a cross (c) a circle with V inside (d) one tall, one short bar
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) wire (c) resistor (d) battery
17. 17.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
18. 18.Which drawing is the symbol for a battery? (a) a long and a short line (b) a plain rectangle (c) a dot where wires meet (d) two or more cell symbols
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) switch (c) LED (d) cell
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) LED (c) bulb (d) motor
21. 21.True or false: a dot where wires meet is the symbol for a wire. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) voltmeter (c) junction (d) diode
23. 23.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) a straight line (c) triangle against a bar (d) triangle, bar and arrows
24. 24.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a straight line (c) a small empty box (d) a long and a short line
25. 25.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
26. 26.Which drawing is the symbol for a diode? (a) a plain rectangle (b) triangle against a bar (c) many long-short pairs (d) a circle with M inside
27. 27.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
28. 28.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
29. 29.True or false: a small empty box is the symbol for a battery. (a) True (b) False
30. 30.True or false: a line lifted at a gap is the symbol for an ammeter. (a) False (b) True
31. 31.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
32. 32.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
33. 33.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) capacitor (c) resistor (d) switch
35. 35.Which drawing is the symbol for a cell? (a) a circle with a cross (b) two or more cell symbols (c) triangle against a bar (d) one tall, one short bar
36. 36.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) cell (c) switch (d) bulb
37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) resistor (c) LED (d) ammeter
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) diode (d) motor
39. 39.True or false: a straight line is the symbol for a wire. (a) True (b) False
40. 40.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True

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