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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 578 · 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.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  2. 2.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a circle with an X in it (c) one tall, one short bar (d) triangle, bar and arrows
  3. 3.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  4. 4.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
  5. 5.Which drawing is the symbol for a diode? (a) a circle with a cross (b) a circle with M inside (c) a small empty box (d) triangle against a bar
  6. 6.True or false: a straight line is the symbol for a wire. (a) False (b) True
  7. 7.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with V inside (c) a dot where wires meet (d) triangle, bar and arrows
  8. 8.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) resistor (d) cell
  10. 10.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a long and a short line (c) a circle with A inside (d) a line lifted at a gap
  11. 11.True or false: a circle with A inside is the symbol for a resistor. (a) False (b) True
  12. 12.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) a plain rectangle (c) a small empty box (d) two equal parallel lines
  13. 13.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
  14. 14.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
  15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) LED (c) resistor (d) diode
  16. 16.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
  17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
  18. 18.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with a cross (c) two equal parallel lines (d) triangle against a bar
  19. 19.Which drawing is the symbol for an ammeter? (a) a circle with M inside (b) a long and a short line (c) a circle with A inside (d) a plain rectangle
  20. 20.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) cell (c) switch (d) wire
  21. 21.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  22. 22.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) diode (c) LED (d) bulb
  23. 23.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) bulb (c) resistor (d) battery
  24. 24.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
  25. 25.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) wire (c) resistor (d) LED
  27. 27.True or false: a small empty box is the symbol for a motor. (a) True (b) False
  28. 28.True or false: a straight line is the symbol for a switch. (a) True (b) False
  29. 29.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) switch (c) battery (d) bulb
  30. 30.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) capacitor (c) junction (d) LED
  32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) voltmeter (c) capacitor (d) cell
  33. 33.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) junction (c) bulb (d) LED
  34. 34.True or false: a circle with a cross is the symbol for a diode. (a) False (b) True
  35. 35.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a long and a short line (c) a circle with A inside (d) a small empty box
  36. 36.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) two or more cell symbols (c) a small empty box (d) triangle against a bar
  37. 37.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
  38. 38.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) a long and a short line (c) a plain rectangle (d) two or more cell symbols
  39. 39.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
  40. 40.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) diode (c) wire (d) junction

Answer key

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

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