Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 424 · 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: two or more cell symbols is the symbol for a battery. (a) True (b) False
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
3. 3.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) switch (d) voltmeter
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) diode (c) junction (d) motor
6. 6.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
7. 7.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) a small empty box (c) a straight line (d) triangle against a bar
8. 8.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) battery (c) resistor (d) bulb
10. 10.✏️ 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
11. 11.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) bulb (c) capacitor (d) battery
13. 13.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a straight line (c) a circle with M inside (d) a small empty box
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) ammeter (c) junction (d) switch
15. 15.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
16. 16.Which drawing is the symbol for a junction? (a) a circle with V inside (b) triangle against a bar (c) a circle with M inside (d) a dot where wires meet
17. 17.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) cell (c) LED (d) wire
19. 19.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a circle with a cross (c) a long and a short line (d) a line lifted at a gap
20. 20.True or false: a straight line is the symbol for a battery. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) cell (c) voltmeter (d) battery
22. 22.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
23. 23.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) two or more cell symbols (c) a line lifted at a gap (d) triangle against a bar
24. 24.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
25. 25.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
26. 26.True or false: many long-short pairs is the symbol for a junction. (a) True (b) False
27. 27.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
28. 28.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) two equal parallel lines (c) a circle with an X in it (d) a circle with a cross
29. 29.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) many long-short pairs (c) a circle with an X in it (d) a plain rectangle
30. 30.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) LED (c) capacitor (d) resistor
31. 31.True or false: a line lifted at a gap is the symbol for a cell. (a) False (b) True
32. 32.True or false: a circle with an X in it is the symbol for a junction. (a) True (b) False
33. 33.Which drawing is the symbol for an LED? (a) triangle against a bar (b) triangle, bar and arrows (c) a long and a short line (d) a small empty box
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) capacitor (c) bulb (d) voltmeter
35. 35.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) diode (c) capacitor (d) cell
37. 37.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with an X in it (c) two or more cell symbols (d) a long and a short line
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) wire (d) ammeter
39. 39.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
40. 40.Which drawing is the symbol for a cell? (a) triangle against a bar (b) a long and a short line (c) a circle with an X in it (d) two or more cell symbols

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