← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 847 · 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.

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

Answer key

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

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids