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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 299 · 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 circle with an X in it is the symbol for a motor. (a) False (b) True
  2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
  3. 3.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) diode (c) voltmeter (d) switch
  4. 4.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) cell (d) diode
  5. 5.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a line lifted at a gap (c) a circle with V inside (d) triangle against a bar
  6. 6.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with an X in it (c) two equal parallel lines (d) a plain rectangle
  7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
  8. 8.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) a long and a short line (c) many long-short pairs (d) a circle with A inside
  9. 9.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) cell (c) voltmeter (d) LED
  10. 10.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
  11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) resistor (c) LED (d) diode
  12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) bulb (c) LED (d) voltmeter
  13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) resistor (c) wire (d) switch
  14. 14.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
  15. 15.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) triangle, bar and arrows (c) a circle with an X in it (d) one tall, one short bar
  16. 16.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
  17. 17.True or false: two or more cell symbols is the symbol for a voltmeter. (a) True (b) False
  18. 18.True or false: two or more cell symbols is the symbol for a wire. (a) False (b) True
  19. 19.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) LED (c) cell (d) voltmeter
  21. 21.Which drawing is the symbol for an LED? (a) a plain rectangle (b) triangle, bar and arrows (c) a long and a short line (d) triangle against a bar
  22. 22.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
  23. 23.Which drawing is the symbol for a capacitor? (a) a straight line (b) triangle, bar and arrows (c) two equal parallel lines (d) many long-short pairs
  24. 24.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a circle with A inside (c) one tall, one short bar (d) a circle with V inside
  25. 25.True or false: many long-short pairs is the symbol for a voltmeter. (a) True (b) False
  26. 26.True or false: triangle, bar and arrows is the symbol for a motor. (a) True (b) False
  27. 27.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) LED (c) switch (d) battery
  28. 28.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
  29. 29.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) ammeter (c) LED (d) bulb
  30. 30.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) ammeter (c) cell (d) bulb
  31. 31.True or false: a small empty box is the symbol for a cell. (a) True (b) False
  32. 32.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) junction (c) LED (d) diode
  33. 33.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a circle with V inside (c) a small empty box (d) a long and a short line
  34. 34.True or false: triangle against a bar is the symbol for an ammeter. (a) True (b) False
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) resistor (c) ammeter (d) battery
  36. 36.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  37. 37.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
  38. 38.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  39. 39.True or false: a dot where wires meet is the symbol for an ammeter. (a) True (b) False
  40. 40.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False

Answer key

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

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