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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 350 · 40 questions
TalentJR

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.

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

Answer key

  1. cell
  2. False
  3. straight lines
  4. False
  5. True
  6. False
  7. a circle with M inside
  8. LED
  9. battery
  10. the longer line
  11. True
  12. bulb
  13. False
  14. False
  15. a line lifted at a gap
  16. quick and clear for all
  17. False
  18. ammeter
  19. two equal parallel lines
  20. False
  21. False
  22. resistor
  23. False
  24. two or more cell symbols
  25. False
  26. junction
  27. False
  28. False
  29. resistor
  30. False
  31. one tall, one short bar
  32. battery
  33. bulb
  34. False
  35. triangle, bar and arrows
  36. False
  37. True
  38. a circle with V inside
  39. a circle with A inside
  40. a plain rectangle

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