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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 655 · 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 longer line (c) the shorter line (d) both lines
  2. 2.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
  3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) battery (c) diode (d) LED
  4. 4.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a circle with a cross (c) a plain rectangle (d) two or more cell symbols
  5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) wire (c) LED (d) voltmeter
  6. 6.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
  7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) cell (c) battery (d) bulb
  8. 8.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
  9. 9.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with a cross (c) a small empty box (d) a circle with A inside
  10. 10.Which drawing is the symbol for a battery? (a) a circle with V inside (b) two equal parallel lines (c) many long-short pairs (d) a straight line
  11. 11.True or false: a straight line is the symbol for a junction. (a) False (b) True
  12. 12.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
  13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) LED (c) voltmeter (d) battery
  14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) resistor (c) LED (d) battery
  15. 15.True or false: two equal parallel lines is the symbol for a motor. (a) True (b) False
  16. 16.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) junction (c) cell (d) wire
  17. 17.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) two or more cell symbols (c) many long-short pairs (d) a line lifted at a gap
  18. 18.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) switch (c) motor (d) cell
  19. 19.Which drawing is the symbol for a wire? (a) a straight line (b) a dot where wires meet (c) a circle with V inside (d) a long and a short line
  20. 20.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
  21. 21.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) a circle with V inside (c) a plain rectangle (d) two equal parallel lines
  22. 22.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  23. 23.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
  24. 24.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
  25. 25.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  26. 26.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
  27. 27.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
  28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) junction (c) bulb (d) wire
  29. 29.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  30. 30.True or false: triangle against a bar is the symbol for an LED. (a) True (b) False
  31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) cell (c) resistor (d) junction
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) motor (c) bulb (d) ammeter
  33. 33.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  34. 34.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
  35. 35.Which drawing is the symbol for a cell? (a) a long and a short line (b) many long-short pairs (c) a circle with A inside (d) a straight line
  36. 36.Which drawing is the symbol for a motor? (a) a circle with V inside (b) a line lifted at a gap (c) a long and a short line (d) a circle with M inside
  37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) diode (c) ammeter (d) junction
  38. 38.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) bulb (c) wire (d) voltmeter
  39. 39.Which drawing is the symbol for a cell? (a) a circle with M inside (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with an X in it
  40. 40.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False

Answer key

  1. the longer line
  2. quick and clear for all
  3. battery
  4. a plain rectangle
  5. LED
  6. True
  7. cell
  8. False
  9. a circle with A inside
  10. many long-short pairs
  11. False
  12. False
  13. switch
  14. battery
  15. False
  16. cell
  17. a circle with a cross
  18. motor
  19. a straight line
  20. False
  21. two equal parallel lines
  22. True
  23. True
  24. False
  25. True
  26. straight lines
  27. False
  28. bulb
  29. True
  30. False
  31. resistor
  32. ammeter
  33. True
  34. False
  35. a long and a short line
  36. a circle with M inside
  37. junction
  38. bulb
  39. one tall, one short bar
  40. False

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