Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 82 · 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: a circle with an X in it is the symbol for a bulb. (a) False (b) True
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
3. 3.Which drawing is the symbol for a wire? (a) a straight line (b) a line lifted at a gap (c) two equal parallel lines (d) a circle with an X in it
4. 4.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a dot where wires meet (c) many long-short pairs (d) a circle with M inside
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) cell (c) resistor (d) switch
6. 6.True or false: a straight line is the symbol for a wire. (a) False (b) True
7. 7.Which drawing is the symbol for an LED? (a) a straight line (b) a line lifted at a gap (c) triangle, bar and arrows (d) triangle against a bar
8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) voltmeter (c) capacitor (d) ammeter
9. 9.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) bulb (c) capacitor (d) wire
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
11. 11.Which drawing is the symbol for a battery? (a) a plain rectangle (b) one tall, one short bar (c) a circle with an X in it (d) many long-short pairs
12. 12.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) switch (c) resistor (d) cell
14. 14.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) resistor (c) capacitor (d) wire
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) capacitor (c) cell (d) switch
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) motor (c) voltmeter (d) switch
19. 19.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) switch (c) cell (d) battery
20. 20.True or false: a long and a short line is the symbol for a capacitor. (a) True (b) False
21. 21.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a circle with a cross (c) a circle with A inside (d) a long and a short line
22. 22.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) triangle against a bar (c) a dot where wires meet (d) two equal parallel lines
23. 23.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with A inside (c) a circle with V inside (d) a circle with an X in it
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) cell (c) motor (d) battery
25. 25.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a circle with A inside (c) a dot where wires meet (d) a long and a short line
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) ammeter (c) LED (d) cell
27. 27.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) a circle with A inside (d) triangle against a bar
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) cell (c) bulb (d) battery
29. 29.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) triangle, bar and arrows (c) a circle with A inside (d) one tall, one short bar
30. 30.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
31. 31.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a long and a short line (c) a straight line (d) triangle, bar and arrows
32. 32.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a line lifted at a gap (c) a dot where wires meet (d) two or more cell symbols
33. 33.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
34. 34.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
35. 35.True or false: a plain rectangle is the symbol for a battery. (a) True (b) False
36. 36.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) bulb (c) LED (d) wire
38. 38.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
39. 39.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
40. 40.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True

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