Electronics Worksheet: Circuit Symbols

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

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