Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 869 · 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.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
2. 2.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
3. 3.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a straight line (c) a circle with an X in it (d) a long and a short line
4. 4.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) battery (c) capacitor (d) LED
6. 6.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a straight line (c) a circle with a cross (d) a line lifted at a gap
7. 7.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
8. 8.Which drawing is the symbol for an LED? (a) a straight line (b) a line lifted at a gap (c) triangle, bar and arrows (d) a small empty box
9. 9.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) two equal parallel lines (c) triangle, bar and arrows (d) triangle against a bar
10. 10.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) battery (c) junction (d) cell
12. 12.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) ammeter (c) switch (d) motor
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) bulb (c) cell (d) capacitor
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) switch (c) resistor (d) cell
16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) voltmeter (c) bulb (d) cell
17. 17.True or false: a line lifted at a gap is the symbol for a bulb. (a) True (b) False
18. 18.True or false: a straight line is the symbol for a wire. (a) False (b) True
19. 19.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) one tall, one short bar (c) a long and a short line (d) two equal parallel lines
20. 20.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
21. 21.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) cell (c) voltmeter (d) bulb
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) cell (c) battery (d) diode
24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) battery (c) motor (d) junction
25. 25.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a straight line (c) a long and a short line (d) two equal parallel lines
26. 26.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a plain rectangle (c) one tall, one short bar (d) a straight line
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) capacitor (c) bulb (d) junction
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) capacitor (c) switch (d) battery
29. 29.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) a small empty box (c) triangle against a bar (d) one tall, one short bar
30. 30.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) wire (c) switch (d) battery
32. 32.Which drawing is the symbol for a cell? (a) a long and a short line (b) many long-short pairs (c) two equal parallel lines (d) a circle with A inside
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) motor (c) resistor (d) voltmeter
34. 34.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
35. 35.True or false: a circle with an X in it is the symbol for a battery. (a) False (b) True
36. 36.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
37. 37.Which drawing is the symbol for a voltmeter? (a) a straight line (b) two or more cell symbols (c) a circle with V inside (d) a circle with a cross
38. 38.True or false: two equal parallel lines is the symbol for a junction. (a) True (b) False
39. 39.True or false: triangle against a bar is the symbol for a wire. (a) False (b) True
40. 40.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True

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