Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 311 · 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: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
2. 2.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a straight line (c) a dot where wires meet (d) triangle, bar and arrows
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
4. 4.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) True (b) False
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) wire (d) switch
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) LED (c) resistor (d) cell
8. 8.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) diode (c) LED (d) capacitor
9. 9.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) junction (c) battery (d) diode
10. 10.True or false: a small empty box is the symbol for a motor. (a) True (b) False
11. 11.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
12. 12.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
13. 13.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a long and a short line (c) triangle against a bar (d) a circle with M inside
14. 14.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) switch (c) cell (d) voltmeter
16. 16.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with A inside (c) a circle with an X in it (d) many long-short pairs
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) capacitor (c) cell (d) ammeter
18. 18.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a small empty box (c) one tall, one short bar (d) a long and a short line
19. 19.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) one tall, one short bar (c) triangle against a bar (d) a circle with A inside
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) ammeter (c) wire (d) motor
21. 21.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) switch (c) junction (d) battery
22. 22.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) switch (c) capacitor (d) LED
24. 24.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a straight line (c) a circle with M inside (d) a circle with A inside
25. 25.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) LED (c) motor (d) bulb
27. 27.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True
28. 28.Which drawing is the symbol for a junction? (a) a straight line (b) many long-short pairs (c) a dot where wires meet (d) a circle with A inside
29. 29.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a long and a short line (c) a line lifted at a gap (d) two or more cell symbols
30. 30.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) ammeter (c) LED (d) wire
32. 32.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
33. 33.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
34. 34.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) junction (c) LED (d) switch
36. 36.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) many long-short pairs (c) triangle, bar and arrows (d) a small empty box
37. 37.True or false: two equal parallel lines is the symbol for an ammeter. (a) False (b) True
38. 38.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) motor (c) capacitor (d) cell
40. 40.Which drawing is the symbol for a cell? (a) triangle against a bar (b) a long and a short line (c) many long-short pairs (d) two or more cell symbols

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