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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 369 · 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 circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) diode (c) bulb (d) junction
  2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) ammeter (c) bulb (d) junction
  3. 3.True or false: a circle with M inside is the symbol for an LED. (a) False (b) True
  4. 4.True or false: two equal parallel lines is the symbol for a voltmeter. (a) False (b) True
  5. 5.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) battery (c) voltmeter (d) LED
  6. 6.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
  7. 7.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
  8. 8.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) a circle with an X in it (c) a circle with a cross (d) two equal parallel lines
  9. 9.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) voltmeter (c) motor (d) junction
  10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) resistor (c) bulb (d) cell
  11. 11.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a line lifted at a gap (c) a circle with M inside (d) two equal parallel lines
  12. 12.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
  13. 13.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
  14. 14.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  15. 15.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) capacitor (c) LED (d) bulb
  16. 16.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  17. 17.True or false: a straight line is the symbol for a switch. (a) False (b) True
  18. 18.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
  19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
  20. 20.Which drawing is the symbol for a wire? (a) many long-short pairs (b) one tall, one short bar (c) a plain rectangle (d) a straight line
  21. 21.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with a cross (c) a circle with M inside (d) a circle with an X in it
  22. 22.Which drawing is the symbol for a junction? (a) a circle with A inside (b) two or more cell symbols (c) a dot where wires meet (d) triangle against a bar
  23. 23.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  24. 24.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  25. 25.True or false: many long-short pairs is the symbol for an LED. (a) False (b) True
  26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) capacitor (c) switch (d) diode
  27. 27.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) LED (c) bulb (d) ammeter
  28. 28.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  29. 29.True or false: a straight line is the symbol for a bulb. (a) False (b) True
  30. 30.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) resistor (c) ammeter (d) bulb
  32. 32.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a plain rectangle (c) a circle with M inside (d) a circle with V inside
  33. 33.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) battery (d) junction
  34. 34.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) triangle against a bar (c) triangle, bar and arrows (d) a circle with a cross
  35. 35.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a circle with V inside (c) two or more cell symbols (d) a small empty box
  36. 36.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
  37. 37.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
  38. 38.True or false: a circle with M inside is the symbol for a resistor. (a) False (b) True
  39. 39.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) wire (c) motor (d) cell
  40. 40.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) resistor (c) switch (d) capacitor

Answer key

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

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