Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 850 · 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 circuit diagram, which part is drawn as a small empty box? (a) resistor (b) LED (c) voltmeter (d) capacitor
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
3. 3.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) bulb (c) battery (d) cell
4. 4.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) triangle, bar and arrows (c) two equal parallel lines (d) triangle against a bar
5. 5.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) battery (c) bulb (d) junction
6. 6.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a circle with an X in it (c) a long and a short line (d) a circle with V inside
7. 7.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) junction (c) battery (d) voltmeter
9. 9.True or false: a circle with M inside is the symbol for a cell. (a) False (b) True
10. 10.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with a cross (c) a long and a short line (d) a circle with M inside
11. 11.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with a cross (c) two equal parallel lines (d) a circle with M inside
12. 12.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with M inside (c) a long and a short line (d) a circle with a cross
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) resistor (c) switch (d) voltmeter
14. 14.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) a circle with M inside (c) triangle against a bar (d) a dot where wires meet
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) wire (d) battery
16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) wire (c) bulb (d) battery
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) bulb (c) junction (d) voltmeter
18. 18.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
19. 19.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a small empty box (c) two or more cell symbols (d) triangle, bar and arrows
20. 20.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
21. 21.True or false: a straight line is the symbol for a resistor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) motor (c) LED (d) capacitor
23. 23.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True
24. 24.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
25. 25.True or false: a small empty box is the symbol for a diode. (a) False (b) True
26. 26.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) battery (c) voltmeter (d) motor
28. 28.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a long and a short line (c) a line lifted at a gap (d) a plain rectangle
29. 29.Which drawing is the symbol for a cell? (a) a straight line (b) a circle with a cross (c) triangle, bar and arrows (d) one tall, one short bar
30. 30.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) cell (c) capacitor (d) switch
31. 31.True or false: triangle against a bar is the symbol for a junction. (a) False (b) True
32. 32.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
33. 33.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a long and a short line (c) two or more cell symbols (d) two equal parallel lines
34. 34.True or false: two or more cell symbols is the symbol for a voltmeter. (a) True (b) False
35. 35.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
36. 36.True or false: a straight line is the symbol for a wire. (a) False (b) True
37. 37.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) triangle, bar and arrows (c) a small empty box (d) a dot where wires meet
38. 38.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) ammeter (c) LED (d) capacitor
39. 39.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) two equal parallel lines (c) many long-short pairs (d) triangle, bar and arrows
40. 40.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False

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