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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 989 · 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 cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
  2. 2.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with V inside (c) a small empty box (d) two or more cell symbols
  3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
  4. 4.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a line lifted at a gap (c) one tall, one short bar (d) two or more cell symbols
  5. 5.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  6. 6.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) motor (c) bulb (d) resistor
  7. 7.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a straight line (c) a long and a short line (d) a circle with V inside
  8. 8.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
  9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) motor (c) switch (d) voltmeter
  10. 10.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) resistor (c) bulb (d) diode
  11. 11.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) motor (c) cell (d) LED
  12. 12.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a circle with a cross (c) triangle against a bar (d) a circle with an X in it
  13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) switch (c) capacitor (d) resistor
  14. 14.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
  15. 15.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
  16. 16.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) voltmeter (c) switch (d) wire
  17. 17.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  18. 18.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  19. 19.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) one tall, one short bar (c) a straight line (d) a dot where wires meet
  20. 20.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) switch (c) resistor (d) junction
  21. 21.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
  22. 22.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) voltmeter (c) ammeter (d) battery
  23. 23.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a circle with M inside (c) a long and a short line (d) a circle with A inside
  24. 24.True or false: one tall, one short bar is the symbol for a bulb. (a) False (b) True
  25. 25.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
  26. 26.True or false: a circle with V inside is the symbol for a diode. (a) False (b) True
  27. 27.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) cell (c) battery (d) motor
  28. 28.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
  29. 29.True or false: a straight line is the symbol for a wire. (a) True (b) False
  30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) motor (c) resistor (d) battery
  31. 31.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) diode (c) capacitor (d) motor
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) resistor (c) motor (d) bulb
  33. 33.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  34. 34.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  35. 35.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) two equal parallel lines (c) triangle against a bar (d) a straight line
  36. 36.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with A inside (c) a circle with V inside (d) triangle against a bar
  37. 37.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
  38. 38.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
  39. 39.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a circle with A inside (c) two or more cell symbols (d) a plain rectangle
  40. 40.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True

Answer key

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

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