Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 282 · 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 bulb? (a) many long-short pairs (b) a circle with a cross (c) a dot where wires meet (d) triangle against a bar
2. 2.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) resistor (c) wire (d) voltmeter
3. 3.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with a cross (c) a circle with V inside (d) many long-short pairs
4. 4.True or false: a circle with V inside is the symbol for a junction. (a) False (b) True
5. 5.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a circle with V inside (c) a small empty box (d) a straight line
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
7. 7.True or false: a straight line is the symbol for a wire. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) switch (c) junction (d) resistor
9. 9.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) ammeter (c) bulb (d) switch
11. 11.Which drawing is the symbol for a diode? (a) a long and a short line (b) triangle against a bar (c) a circle with A inside (d) two or more cell symbols
12. 12.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a long and a short line (c) two or more cell symbols (d) a circle with M inside
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) wire (c) voltmeter (d) battery
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) junction (c) battery (d) wire
15. 15.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) wire (c) bulb (d) motor
17. 17.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
18. 18.Which drawing is the symbol for a motor? (a) a circle with M inside (b) two or more cell symbols (c) a dot where wires meet (d) a long and a short line
19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
20. 20.True or false: triangle, bar and arrows is the symbol for a resistor. (a) True (b) False
21. 21.True or false: a dot where wires meet is the symbol for a switch. (a) False (b) True
22. 22.True or false: many long-short pairs is the symbol for an ammeter. (a) False (b) True
23. 23.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a small empty box (c) a long and a short line (d) a circle with an X in it
24. 24.True or false: triangle, bar and arrows is the symbol for a junction. (a) True (b) False
25. 25.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
26. 26.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) ammeter (c) wire (d) capacitor
28. 28.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) wire (c) junction (d) bulb
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) wire (c) motor (d) ammeter
30. 30.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
31. 31.Which drawing is the symbol for an LED? (a) a small empty box (b) a circle with A inside (c) a circle with V inside (d) triangle, bar and arrows
32. 32.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
33. 33.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) two equal parallel lines (c) a plain rectangle (d) a circle with an X in it
34. 34.Which drawing is the symbol for a cell? (a) a circle with M inside (b) many long-short pairs (c) a plain rectangle (d) one tall, one short bar
35. 35.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
36. 36.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) battery (c) cell (d) switch
38. 38.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) cell (c) junction (d) battery
39. 39.Which drawing is the symbol for a junction? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with M inside (d) a dot where wires meet
40. 40.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) switch (c) voltmeter (d) battery

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