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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 990 · 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.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a circle with a cross (c) a line lifted at a gap (d) two or more cell symbols
  2. 2.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a circle with a cross (d) a dot where wires meet
  3. 3.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) cell (c) wire (d) resistor
  4. 4.Which drawing is the symbol for a resistor? (a) a straight line (b) two equal parallel lines (c) two or more cell symbols (d) a plain rectangle
  5. 5.True or false: a small empty box is the symbol for a switch. (a) False (b) True
  6. 6.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) battery (c) resistor (d) bulb
  7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
  8. 8.True or false: many long-short pairs is the symbol for a diode. (a) False (b) True
  9. 9.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a small empty box (c) two or more cell symbols (d) two equal parallel lines
  10. 10.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) one tall, one short bar (c) two or more cell symbols (d) triangle, bar and arrows
  11. 11.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
  12. 12.True or false: a circle with a cross is the symbol for a diode. (a) False (b) True
  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 many long-short pairs? (a) junction (b) battery (c) switch (d) diode
  15. 15.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  16. 16.True or false: one tall, one short bar is the symbol for an LED. (a) False (b) True
  17. 17.Which drawing is the symbol for a diode? (a) triangle against a bar (b) two or more cell symbols (c) a circle with M inside (d) a circle with an X in it
  18. 18.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  19. 19.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
  20. 20.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) wire (c) bulb (d) motor
  21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) ammeter (c) capacitor (d) switch
  22. 22.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  23. 23.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) triangle against a bar (c) a circle with a cross (d) many long-short pairs
  24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) LED (c) capacitor (d) diode
  25. 25.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) battery (c) LED (d) diode
  26. 26.Which drawing is the symbol for a motor? (a) two equal parallel lines (b) a long and a short line (c) a circle with an X in it (d) a circle with M inside
  27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) cell (c) LED (d) resistor
  28. 28.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
  29. 29.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True
  30. 30.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  31. 31.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) switch (c) bulb (d) resistor
  32. 32.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a dot where wires meet (c) two equal parallel lines (d) triangle, bar and arrows
  33. 33.True or false: a straight line is the symbol for a switch. (a) True (b) False
  34. 34.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
  35. 35.True or false: a straight line is the symbol for a cell. (a) False (b) True
  36. 36.True or false: a small empty box is the symbol for a diode. (a) False (b) True
  37. 37.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
  38. 38.True or false: many long-short pairs is the symbol for a motor. (a) False (b) True
  39. 39.✏️ 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
  40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) battery (c) motor (d) ammeter

Answer key

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

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