Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 811 · 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.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) many long-short pairs (c) one tall, one short bar (d) triangle, bar and arrows
2. 2.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) wire (c) LED (d) bulb
4. 4.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) bulb (c) wire (d) junction
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) bulb (c) voltmeter (d) battery
7. 7.Which drawing is the symbol for a wire? (a) a long and a short line (b) triangle against a bar (c) a straight line (d) triangle, bar and arrows
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) voltmeter (c) bulb (d) switch
9. 9.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
10. 10.True or false: many long-short pairs is the symbol for a diode. (a) True (b) False
11. 11.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
12. 12.Which drawing is the symbol for an LED? (a) many long-short pairs (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with M inside
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
14. 14.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) triangle against a bar (c) a circle with V inside (d) two equal parallel lines
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) voltmeter (c) battery (d) bulb
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) wire (c) voltmeter (d) junction
17. 17.True or false: a straight line is the symbol for a wire. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) LED (c) junction (d) bulb
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) switch (c) resistor (d) cell
20. 20.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with V inside (c) triangle, bar and arrows (d) a circle with M inside
21. 21.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) capacitor (c) battery (d) LED
23. 23.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
25. 25.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
26. 26.True or false: a small empty box is the symbol for a junction. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) resistor (c) bulb (d) wire
28. 28.True or false: a dot where wires meet is the symbol for an LED. (a) False (b) True
29. 29.True or false: a straight line is the symbol for a junction. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) capacitor (c) cell (d) wire
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) resistor (c) ammeter (d) bulb
32. 32.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with a cross (c) a small empty box (d) a long and a short line
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) motor (c) diode (d) cell
34. 34.True or false: triangle against a bar is the symbol for a voltmeter. (a) False (b) True
35. 35.Which drawing is the symbol for a cell? (a) a circle with M inside (b) a dot where wires meet (c) a long and a short line (d) a straight line
36. 36.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with a cross (c) a dot where wires meet (d) a circle with V inside
37. 37.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
38. 38.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) many long-short pairs (c) a plain rectangle (d) a circle with A inside
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) junction (c) bulb (d) ammeter
40. 40.True or false: a dot where wires meet is the symbol for a wire. (a) True (b) False

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