Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 676 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
2. 2.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) cell (c) switch (d) voltmeter
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
5. 5.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
6. 6.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a dot where wires meet (c) a circle with a cross (d) two equal parallel lines
7. 7.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with an X in it (c) triangle against a bar (d) two or more cell symbols
8. 8.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
9. 9.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
11. 11.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with A inside (c) a circle with an X in it (d) triangle, bar and arrows
12. 12.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) battery (d) bulb
14. 14.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
15. 15.True or false: triangle against a bar is the symbol for a junction. (a) True (b) False
16. 16.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a circle with M inside (c) triangle against a bar (d) a circle with an X in it
17. 17.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) two equal parallel lines (d) a line lifted at a gap
18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) wire (c) LED (d) junction
19. 19.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) wire (c) resistor (d) ammeter
20. 20.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with M inside (c) two equal parallel lines (d) a circle with a cross
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) diode (c) ammeter (d) resistor
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) capacitor (c) voltmeter (d) switch
23. 23.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) one tall, one short bar (c) a long and a short line (d) a circle with V inside
24. 24.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
25. 25.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a small empty box (c) a straight line (d) a circle with an X in it
26. 26.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) LED (c) cell (d) resistor
28. 28.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a long and a short line (c) a line lifted at a gap (d) two or more cell symbols
29. 29.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with V inside (c) a long and a short line (d) one tall, one short bar
30. 30.Which drawing is the symbol for a capacitor? (a) a straight line (b) a circle with M inside (c) two equal parallel lines (d) triangle, bar and arrows
31. 31.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) battery (c) bulb (d) LED
33. 33.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False
34. 34.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
35. 35.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) voltmeter (c) capacitor (d) cell
37. 37.Which drawing is the symbol for an LED? (a) a long and a short line (b) a circle with A inside (c) two equal parallel lines (d) triangle, bar and arrows
38. 38.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
39. 39.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
40. 40.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True

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