Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 762 · 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: a circle with A inside is the symbol for a capacitor. (a) True (b) False
2. 2.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) motor (c) ammeter (d) wire
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
5. 5.True or false: a circle with a cross is the symbol for a motor. (a) True (b) False
6. 6.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a straight line (c) a circle with an X in it (d) one tall, one short bar
7. 7.True or false: a dot where wires meet is the symbol for a diode. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) cell (c) ammeter (d) motor
9. 9.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
10. 10.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a long and a short line (c) two equal parallel lines (d) a circle with A inside
11. 11.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
12. 12.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a line lifted at a gap (c) a small empty box (d) two equal parallel lines
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
14. 14.Which drawing is the symbol for a diode? (a) a long and a short line (b) a plain rectangle (c) triangle against a bar (d) a circle with M inside
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) capacitor (c) switch (d) ammeter
16. 16.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
17. 17.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with A inside (c) a circle with a cross (d) two equal parallel lines
18. 18.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) resistor (c) battery (d) switch
19. 19.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) wire (d) bulb
20. 20.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) two equal parallel lines (c) many long-short pairs (d) triangle, bar and arrows
21. 21.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) a circle with a cross (c) a long and a short line (d) triangle, bar and arrows
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) LED (c) ammeter (d) wire
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) ammeter (c) capacitor (d) voltmeter
24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) capacitor (c) wire (d) switch
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) wire (c) resistor (d) junction
26. 26.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) two or more cell symbols (c) one tall, one short bar (d) a circle with V inside
27. 27.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a small empty box (d) a dot where wires meet
28. 28.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) voltmeter (c) battery (d) motor
30. 30.True or false: a straight line is the symbol for a wire. (a) False (b) True
31. 31.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a circle with M inside (c) a straight line (d) a circle with A inside
32. 32.Which drawing is the symbol for a wire? (a) a circle with a cross (b) two or more cell symbols (c) a straight line (d) a circle with M inside
33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) switch (c) capacitor (d) bulb
34. 34.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) junction (c) capacitor (d) bulb
35. 35.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
36. 36.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
37. 37.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a circle with M inside (c) a small empty box (d) many long-short pairs
38. 38.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
39. 39.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
40. 40.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) True (b) False

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