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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 944 · 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: triangle against a bar is the symbol for a junction. (a) True (b) False
  2. 2.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  3. 3.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
  4. 4.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) bulb (c) switch (d) resistor
  5. 5.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
  6. 6.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with a cross (c) a long and a short line (d) a circle with V inside
  7. 7.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  8. 8.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) diode (c) ammeter (d) resistor
  9. 9.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
  10. 10.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with A inside (c) a dot where wires meet (d) triangle, bar and arrows
  11. 11.True or false: a circle with M inside is the symbol for a battery. (a) True (b) False
  12. 12.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a long and a short line (c) a circle with an X in it (d) a straight line
  13. 13.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) triangle against a bar (c) one tall, one short bar (d) a line lifted at a gap
  14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) capacitor (c) bulb (d) switch
  15. 15.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a circle with A inside (c) two or more cell symbols (d) a long and a short line
  16. 16.True or false: a small empty box is the symbol for a motor. (a) False (b) True
  17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) cell (c) ammeter (d) switch
  18. 18.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a plain rectangle (c) one tall, one short bar (d) triangle against a bar
  19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) LED (c) battery (d) voltmeter
  20. 20.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a straight line (c) many long-short pairs (d) a small empty box
  21. 21.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
  22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
  23. 23.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  25. 25.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  26. 26.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  27. 27.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with A inside (c) a circle with a cross (d) one tall, one short bar
  28. 28.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
  29. 29.True or false: a small empty box is the symbol for a cell. (a) False (b) True
  30. 30.True or false: a small empty box is the symbol for an LED. (a) True (b) False
  31. 31.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) a circle with V inside (d) a circle with A inside
  32. 32.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  33. 33.True or false: a straight line is the symbol for a motor. (a) False (b) True
  34. 34.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) wire (c) capacitor (d) junction
  35. 35.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with A inside
  36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) ammeter (c) cell (d) switch
  37. 37.True or false: a line lifted at a gap is the symbol for a resistor. (a) False (b) True
  38. 38.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
  39. 39.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) resistor (c) ammeter (d) voltmeter
  40. 40.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False

Answer key

  1. False
  2. True
  3. False
  4. bulb
  5. quick and clear for all
  6. a dot where wires meet
  7. True
  8. resistor
  9. the longer line
  10. many long-short pairs
  11. False
  12. a long and a short line
  13. a line lifted at a gap
  14. bulb
  15. two or more cell symbols
  16. False
  17. capacitor
  18. a circle with V inside
  19. battery
  20. a straight line
  21. False
  22. straight lines
  23. True
  24. True
  25. True
  26. True
  27. a circle with a cross
  28. False
  29. False
  30. False
  31. a circle with M inside
  32. True
  33. False
  34. wire
  35. two equal parallel lines
  36. cell
  37. False
  38. False
  39. ammeter
  40. False

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