Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 280 · 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 motor. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) switch (c) capacitor (d) junction
3. 3.True or false: a line lifted at a gap is the symbol for a junction. (a) True (b) False
4. 4.True or false: triangle against a bar is the symbol for a motor. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) ammeter (c) junction (d) battery
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
7. 7.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
8. 8.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
9. 9.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) one tall, one short bar (c) a circle with V inside (d) triangle against a bar
10. 10.True or false: one tall, one short bar is the symbol for a capacitor. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) LED (c) resistor (d) wire
12. 12.Which drawing is the symbol for a junction? (a) a small empty box (b) a long and a short line (c) a circle with V inside (d) a dot where wires meet
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) LED (c) motor (d) bulb
14. 14.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
16. 16.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
17. 17.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) one tall, one short bar (c) a circle with a cross (d) a circle with A inside
18. 18.Which drawing is the symbol for a motor? (a) a circle with V inside (b) one tall, one short bar (c) a circle with M inside (d) a circle with a cross
19. 19.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
20. 20.True or false: a straight line is the symbol for a cell. (a) False (b) True
21. 21.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) two equal parallel lines (c) a circle with A inside (d) a straight line
22. 22.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
23. 23.Which drawing is the symbol for a resistor? (a) a straight line (b) a small empty box (c) a circle with M inside (d) triangle against a bar
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) wire (c) battery (d) ammeter
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) resistor (d) ammeter
26. 26.Which drawing is the symbol for an LED? (a) a circle with M inside (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with V inside
27. 27.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) capacitor (c) LED (d) wire
29. 29.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) LED (c) wire (d) capacitor
30. 30.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a long and a short line (c) one tall, one short bar (d) a circle with M inside
31. 31.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a long and a short line (c) triangle against a bar (d) a circle with M inside
32. 32.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) LED (c) motor (d) resistor
34. 34.Which drawing is the symbol for a battery? (a) a plain rectangle (b) two equal parallel lines (c) many long-short pairs (d) a circle with an X in it
35. 35.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a plain rectangle (c) a circle with a cross (d) triangle, bar and arrows
36. 36.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
37. 37.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
38. 38.True or false: a circle with M inside is the symbol for a battery. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) bulb (c) LED (d) resistor
40. 40.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) junction (c) cell (d) resistor

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