Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 261 · 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.Which drawing is the symbol for a wire? (a) a circle with V inside (b) a straight line (c) a circle with an X in it (d) a line lifted at a gap
2. 2.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) diode (c) bulb (d) voltmeter
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) resistor (c) voltmeter (d) LED
4. 4.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) triangle, bar and arrows (c) one tall, one short bar (d) a circle with A inside
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) battery (c) switch (d) cell
6. 6.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
7. 7.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) many long-short pairs (c) a small empty box (d) one tall, one short bar
8. 8.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a dot where wires meet (c) triangle, bar and arrows (d) a circle with a cross
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
10. 10.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True
11. 11.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
12. 12.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) many long-short pairs (c) a circle with an X in it (d) a straight line
13. 13.Which drawing is the symbol for a battery? (a) a circle with M inside (b) two or more cell symbols (c) a dot where wires meet (d) a circle with an X in it
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) LED (c) diode (d) bulb
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) switch (c) resistor (d) battery
16. 16.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a straight line (c) triangle against a bar (d) a circle with an X in it
17. 17.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) wire (c) voltmeter (d) switch
18. 18.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) cell (c) junction (d) LED
19. 19.True or false: many long-short pairs is the symbol for a wire. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) battery (c) wire (d) switch
21. 21.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) a dot where wires meet (c) a circle with V inside (d) two or more cell symbols
22. 22.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) wire (d) ammeter
24. 24.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) ammeter (c) junction (d) bulb
26. 26.Which drawing is the symbol for a switch? (a) a long and a short line (b) a small empty box (c) a line lifted at a gap (d) a circle with a cross
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) ammeter (c) motor (d) battery
28. 28.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) battery (c) motor (d) switch
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) LED (c) voltmeter (d) motor
31. 31.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) a dot where wires meet (d) a long and a short line
32. 32.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
33. 33.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
34. 34.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) triangle against a bar (c) a plain rectangle (d) a dot where wires meet
35. 35.True or false: a circle with A inside is the symbol for a diode. (a) False (b) True
36. 36.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
37. 37.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
38. 38.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
39. 39.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a small empty box (c) one tall, one short bar (d) many long-short pairs
40. 40.True or false: a long and a short line is the symbol for a cell. (a) True (b) False

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