Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 184 · 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 dot where wires meet? (a) junction (b) cell (c) resistor (d) ammeter
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) resistor (c) capacitor (d) wire
4. 4.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
5. 5.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) capacitor (d) cell
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) cell (c) switch (d) LED
8. 8.Which drawing is the symbol for a junction? (a) a long and a short line (b) a dot where wires meet (c) triangle, bar and arrows (d) a plain rectangle
9. 9.True or false: a circle with a cross is the symbol for a motor. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) diode (c) LED (d) switch
11. 11.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) one tall, one short bar (c) a long and a short line (d) triangle against a bar
12. 12.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) many long-short pairs (c) a circle with A inside (d) a line lifted at a gap
13. 13.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
15. 15.Which drawing is the symbol for a motor? (a) a circle with A inside (b) triangle against a bar (c) a circle with M inside (d) a circle with V inside
16. 16.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
17. 17.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) bulb (c) battery (d) diode
19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) bulb (c) battery (d) ammeter
20. 20.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
21. 21.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a long and a short line (c) two equal parallel lines (d) many long-short pairs
22. 22.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
23. 23.Which drawing is the symbol for a cell? (a) triangle against a bar (b) one tall, one short bar (c) a circle with M inside (d) two equal parallel lines
24. 24.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
25. 25.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
26. 26.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a small empty box (c) a circle with A inside (d) two equal parallel lines
27. 27.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) two or more cell symbols (c) a circle with an X in it (d) a line lifted at a gap
28. 28.Which drawing is the symbol for a diode? (a) a circle with a cross (b) many long-short pairs (c) triangle against a bar (d) a plain rectangle
29. 29.Which drawing is the symbol for a wire? (a) a straight line (b) a long and a short line (c) a line lifted at a gap (d) triangle, bar and arrows
30. 30.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) motor (c) ammeter (d) cell
32. 32.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True
33. 33.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) many long-short pairs (c) a circle with an X in it (d) a dot where wires meet
34. 34.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) two or more cell symbols (c) a dot where wires meet (d) a circle with A inside
35. 35.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) many long-short pairs (c) one tall, one short bar (d) a circle with a cross
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) battery (c) ammeter (d) bulb
37. 37.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) capacitor (c) motor (d) switch
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) bulb (c) diode (d) battery
40. 40.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False

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