Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 706 · 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 circle with an X in it? (a) capacitor (b) battery (c) bulb (d) voltmeter
2. 2.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
3. 3.Which drawing is the symbol for a resistor? (a) a small empty box (b) many long-short pairs (c) one tall, one short bar (d) a circle with V inside
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) LED (c) battery (d) switch
6. 6.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
7. 7.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
8. 8.Which drawing is the symbol for an ammeter? (a) a small empty box (b) triangle, bar and arrows (c) a circle with M inside (d) a circle with A inside
9. 9.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) wire (c) bulb (d) motor
12. 12.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a straight line (c) many long-short pairs (d) one tall, one short bar
13. 13.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
14. 14.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with M inside (c) one tall, one short bar (d) a circle with a cross
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) motor (c) junction (d) cell
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) junction (c) voltmeter (d) motor
17. 17.True or false: a straight line is the symbol for a bulb. (a) True (b) False
18. 18.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
19. 19.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) bulb (c) wire (d) resistor
20. 20.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
21. 21.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
22. 22.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
23. 23.True or false: triangle against a bar is the symbol for a voltmeter. (a) False (b) True
24. 24.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) many long-short pairs (c) two equal parallel lines (d) two or more cell symbols
25. 25.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) voltmeter (c) battery (d) capacitor
26. 26.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
27. 27.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with a cross (c) a long and a short line (d) triangle against a bar
28. 28.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) one tall, one short bar (c) a circle with an X in it (d) triangle against a bar
29. 29.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a circle with A inside (c) two or more cell symbols (d) a straight line
30. 30.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
31. 31.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with M inside (c) triangle, bar and arrows (d) a circle with an X in it
32. 32.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a small empty box (c) a circle with an X in it (d) triangle, bar and arrows
33. 33.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
34. 34.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a line lifted at a gap (c) a circle with V inside (d) a dot where wires meet
35. 35.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) motor (c) switch (d) ammeter
36. 36.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
37. 37.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
38. 38.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
39. 39.Which drawing is the symbol for a diode? (a) triangle against a bar (b) triangle, bar and arrows (c) two or more cell symbols (d) a circle with V inside
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) LED (c) motor (d) ammeter

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