Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 577 · 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) the longer line (d) both lines
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) junction (d) cell
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) cell (c) bulb (d) battery
4. 4.✏️ 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
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) voltmeter (d) battery
6. 6.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
7. 7.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) two equal parallel lines (c) two or more cell symbols (d) a line lifted at a gap
8. 8.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a dot where wires meet (c) a circle with M inside (d) a circle with A inside
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
10. 10.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with M inside (c) a circle with A inside (d) a circle with a cross
11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) resistor (c) battery (d) cell
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) junction (c) LED (d) cell
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) cell (c) battery (d) motor
14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) junction (c) switch (d) bulb
15. 15.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a small empty box (c) two equal parallel lines (d) a straight line
16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) junction (c) switch (d) motor
17. 17.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) voltmeter (d) ammeter
18. 18.Which drawing is the symbol for a cell? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with a cross (d) a small empty box
19. 19.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) a long and a short line (c) two equal parallel lines (d) a line lifted at a gap
20. 20.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
21. 21.Which drawing is the symbol for a wire? (a) a straight line (b) many long-short pairs (c) two or more cell symbols (d) a long and a short line
22. 22.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
23. 23.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
24. 24.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) battery (c) motor (d) bulb
26. 26.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
27. 27.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a straight line (c) triangle against a bar (d) a plain rectangle
28. 28.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a circle with V inside (c) a line lifted at a gap (d) a dot where wires meet
29. 29.True or false: a line lifted at a gap is the symbol for a cell. (a) False (b) True
30. 30.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) junction (c) resistor (d) bulb
32. 32.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) two or more cell symbols (c) triangle, bar and arrows (d) a circle with a cross
33. 33.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) ammeter (c) battery (d) voltmeter
35. 35.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) junction (c) LED (d) diode
36. 36.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
37. 37.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
38. 38.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) battery (c) wire (d) diode
40. 40.True or false: a straight line is the symbol for a junction. (a) True (b) False

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