Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 641 · 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 equal parallel lines is the symbol for a wire. (a) False (b) True
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
3. 3.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) junction (c) wire (d) switch
4. 4.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
5. 5.Which drawing is the symbol for an LED? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with V inside (d) a straight line
6. 6.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) ammeter (c) switch (d) battery
8. 8.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) triangle against a bar (c) a circle with a cross (d) a circle with V inside
9. 9.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) capacitor (c) resistor (d) junction
12. 12.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a circle with M inside (c) one tall, one short bar (d) two or more cell symbols
13. 13.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
14. 14.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
15. 15.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) capacitor (c) junction (d) voltmeter
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) cell (c) resistor (d) diode
18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) bulb (c) battery (d) capacitor
19. 19.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
20. 20.Which drawing is the symbol for a diode? (a) a circle with a cross (b) a circle with M inside (c) a plain rectangle (d) triangle against a bar
21. 21.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) voltmeter (c) diode (d) capacitor
23. 23.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with an X in it (c) a line lifted at a gap (d) a circle with A inside
24. 24.True or false: a circle with A inside is the symbol for a motor. (a) False (b) True
25. 25.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
26. 26.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a plain rectangle (c) a line lifted at a gap (d) a dot where wires meet
27. 27.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) bulb (c) capacitor (d) resistor
29. 29.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with an X in it
30. 30.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
31. 31.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) bulb (c) wire (d) battery
33. 33.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True
34. 34.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) triangle against a bar (c) a straight line (d) a circle with a cross
35. 35.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) junction (c) ammeter (d) LED
36. 36.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) cell (c) switch (d) diode
37. 37.Which drawing is the symbol for a battery? (a) a long and a short line (b) triangle against a bar (c) many long-short pairs (d) a circle with V inside
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) ammeter (c) LED (d) cell
39. 39.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) triangle, bar and arrows (c) a circle with M inside (d) a long and a short line
40. 40.True or false: a circle with a cross is the symbol for a cell. (a) False (b) True

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