Electronics Worksheet: Circuit Symbols

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

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