Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 230 · 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.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
2. 2.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
3. 3.Which drawing is the symbol for a switch? (a) a straight line (b) a small empty box (c) many long-short pairs (d) a line lifted at a gap
4. 4.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
5. 5.Which drawing is the symbol for a bulb? (a) a straight line (b) two or more cell symbols (c) a circle with a cross (d) a small empty box
6. 6.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a long and a short line (c) a straight line (d) a plain rectangle
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) ammeter (c) battery (d) resistor
8. 8.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a straight line (c) a dot where wires meet (d) a circle with a cross
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
10. 10.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
11. 11.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
12. 12.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) resistor (c) battery (d) LED
14. 14.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a plain rectangle (c) a circle with an X in it (d) many long-short pairs
15. 15.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) bulb (c) resistor (d) junction
16. 16.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
17. 17.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with A inside (c) a circle with an X in it (d) a circle with M inside
18. 18.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) voltmeter (c) capacitor (d) bulb
19. 19.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a dot where wires meet (c) triangle, bar and arrows (d) a circle with an X in it
20. 20.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
21. 21.True or false: a circle with A inside is the symbol for a switch. (a) False (b) True
22. 22.True or false: a small empty box is the symbol for a junction. (a) False (b) True
23. 23.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) junction (c) ammeter (d) resistor
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) LED (c) bulb (d) junction
26. 26.Which drawing is the symbol for a cell? (a) a straight line (b) a small empty box (c) a circle with M inside (d) one tall, one short bar
27. 27.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) a circle with V inside (d) a dot where wires meet
28. 28.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) resistor (c) LED (d) cell
30. 30.Which drawing is the symbol for a diode? (a) many long-short pairs (b) two or more cell symbols (c) triangle against a bar (d) a circle with a cross
31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) LED (d) wire
32. 32.True or false: two or more cell symbols is the symbol for a motor. (a) False (b) True
33. 33.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) battery (c) junction (d) voltmeter
35. 35.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) cell (c) resistor (d) diode
36. 36.Which drawing is the symbol for an LED? (a) a circle with M inside (b) a circle with a cross (c) two equal parallel lines (d) triangle, bar and arrows
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) LED (c) switch (d) bulb
38. 38.Which drawing is the symbol for a battery? (a) a small empty box (b) a circle with M inside (c) many long-short pairs (d) triangle, bar and arrows
39. 39.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
40. 40.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True

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