Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 883 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
2. 2.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) switch (c) capacitor (d) voltmeter
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) diode (c) LED (d) voltmeter
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) battery (c) switch (d) motor
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
6. 6.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with M inside (c) one tall, one short bar (d) triangle against a bar
7. 7.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a circle with an X in it (c) a circle with M inside (d) a straight line
8. 8.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
9. 9.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) a plain rectangle (c) triangle against a bar (d) a dot where wires meet
10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) switch (d) battery
11. 11.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a circle with M inside (c) a dot where wires meet (d) a small empty box
12. 12.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
13. 13.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) a circle with M inside (c) two equal parallel lines (d) two or more cell symbols
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) switch (c) battery (d) motor
15. 15.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) one tall, one short bar (c) two equal parallel lines (d) a long and a short line
16. 16.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) LED (c) junction (d) switch
18. 18.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
19. 19.Which drawing is the symbol for an ammeter? (a) a small empty box (b) a circle with a cross (c) a circle with A inside (d) a circle with an X in it
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) switch (c) bulb (d) capacitor
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) cell (c) voltmeter (d) battery
22. 22.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
23. 23.True or false: triangle against a bar is the symbol for a capacitor. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) diode (c) capacitor (d) resistor
25. 25.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) battery (c) LED (d) wire
26. 26.Which drawing is the symbol for a resistor? (a) a small empty box (b) a long and a short line (c) triangle, bar and arrows (d) a circle with a cross
27. 27.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with an X in it (c) a line lifted at a gap (d) a circle with A inside
28. 28.True or false: a line lifted at a gap is the symbol for an ammeter. (a) False (b) True
29. 29.Which drawing is the symbol for an LED? (a) a circle with A inside (b) a plain rectangle (c) many long-short pairs (d) triangle, bar and arrows
30. 30.Which drawing is the symbol for a wire? (a) a circle with V inside (b) two equal parallel lines (c) a straight line (d) one tall, one short bar
31. 31.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
32. 32.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) LED (c) cell (d) bulb
34. 34.True or false: a straight line is the symbol for a cell. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) bulb (c) switch (d) ammeter
36. 36.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
37. 37.True or false: a small empty box is the symbol for a battery. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) battery (c) junction (d) bulb
39. 39.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False

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