Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 402 · 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 circle with M inside is the symbol for a motor. (a) True (b) False
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
3. 3.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) voltmeter (c) cell (d) resistor
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) resistor (c) battery (d) LED
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
6. 6.Which drawing is the symbol for a diode? (a) a circle with a cross (b) two or more cell symbols (c) a plain rectangle (d) triangle against a bar
7. 7.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) cell (c) motor (d) capacitor
9. 9.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a dot where wires meet (c) a long and a short line (d) a circle with V inside
10. 10.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) cell (c) diode (d) voltmeter
11. 11.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) one tall, one short bar (c) a dot where wires meet (d) a small empty box
12. 12.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) a circle with an X in it (d) a dot where wires meet
13. 13.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
14. 14.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) triangle against a bar (c) a straight line (d) a line lifted at a gap
15. 15.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
16. 16.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
17. 17.Which drawing is the symbol for a battery? (a) a straight line (b) a line lifted at a gap (c) many long-short pairs (d) a circle with V inside
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) resistor (c) bulb (d) motor
19. 19.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
20. 20.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
21. 21.True or false: a circle with V inside is the symbol for a junction. (a) False (b) True
22. 22.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with an X in it (c) a circle with V inside (d) triangle, bar and arrows
23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) junction (c) resistor (d) capacitor
24. 24.Which drawing is the symbol for a switch? (a) a long and a short line (b) a circle with a cross (c) a line lifted at a gap (d) two or more cell symbols
25. 25.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with A inside (c) a circle with an X in it (d) a circle with V inside
26. 26.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True
27. 27.Which drawing is the symbol for a motor? (a) a circle with A inside (b) triangle against a bar (c) a small empty box (d) a circle with M inside
28. 28.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
29. 29.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a long and a short line (c) triangle, bar and arrows (d) triangle against a bar
30. 30.True or false: a circle with V inside is the symbol for a motor. (a) False (b) True
31. 31.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) junction (c) diode (d) switch
33. 33.True or false: a straight line is the symbol for a motor. (a) True (b) False
34. 34.Which drawing is the symbol for a junction? (a) a small empty box (b) a circle with V inside (c) a circle with M inside (d) a dot where wires meet
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) voltmeter (c) resistor (d) motor
36. 36.True or false: a circle with a cross is the symbol for an LED. (a) False (b) True
37. 37.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) many long-short pairs (c) a circle with A inside (d) a long and a short line
38. 38.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) LED (c) diode (d) bulb
40. 40.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) cell (c) motor (d) voltmeter

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