Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 772 · 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 small empty box is the symbol for a resistor. (a) True (b) False
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
3. 3.Which drawing is the symbol for a wire? (a) a circle with A inside (b) triangle, bar and arrows (c) a straight line (d) a circle with a cross
4. 4.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) wire (c) battery (d) voltmeter
5. 5.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
6. 6.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
7. 7.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) two or more cell symbols (c) a plain rectangle (d) a circle with a cross
8. 8.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a plain rectangle (c) many long-short pairs (d) a circle with an X in it
9. 9.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
10. 10.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with A inside (c) a circle with a cross (d) many long-short pairs
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
12. 12.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) LED (c) junction (d) diode
14. 14.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) LED (c) junction (d) diode
16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) junction (c) capacitor (d) voltmeter
17. 17.True or false: a straight line is the symbol for a diode. (a) True (b) False
18. 18.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
19. 19.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
20. 20.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a plain rectangle (c) triangle against a bar (d) many long-short pairs
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) diode (c) battery (d) motor
22. 22.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) bulb (c) cell (d) capacitor
23. 23.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
24. 24.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a straight line (c) triangle, bar and arrows (d) a circle with an X in it
25. 25.True or false: a circle with A inside is the symbol for a diode. (a) False (b) True
26. 26.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) triangle against a bar (c) one tall, one short bar (d) a dot where wires meet
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) cell (c) battery (d) motor
28. 28.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
29. 29.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
30. 30.True or false: a straight line is the symbol for a wire. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) resistor (c) motor (d) bulb
32. 32.Which drawing is the symbol for an LED? (a) a circle with M inside (b) triangle, bar and arrows (c) a circle with an X in it (d) a plain rectangle
33. 33.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a long and a short line (c) a small empty box (d) two equal parallel lines
34. 34.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) bulb (c) voltmeter (d) junction
36. 36.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a circle with V inside (c) a long and a short line (d) two or more cell symbols
37. 37.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a dot where wires meet (c) two equal parallel lines (d) a long and a short line
38. 38.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a circle with an X in it (c) a long and a short line (d) many long-short pairs
39. 39.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) cell (c) motor (d) capacitor
40. 40.Which drawing is the symbol for a battery? (a) a long and a short line (b) two or more cell symbols (c) a plain rectangle (d) a small empty box

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