← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 746 · 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 one tall, one short bar? (a) cell (b) capacitor (c) junction (d) voltmeter
  2. 2.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) cell (c) resistor (d) diode
  3. 3.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) motor (c) LED (d) resistor
  4. 4.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
  5. 5.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with V inside (c) a small empty box (d) a circle with a cross
  6. 6.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
  7. 7.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  8. 8.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
  10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) voltmeter (c) battery (d) switch
  11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) voltmeter (c) cell (d) resistor
  12. 12.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) capacitor (c) cell (d) LED
  14. 14.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  15. 15.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) switch (c) ammeter (d) voltmeter
  16. 16.True or false: triangle against a bar is the symbol for a motor. (a) False (b) True
  17. 17.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  18. 18.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle against a bar (c) two equal parallel lines (d) one tall, one short bar
  19. 19.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
  20. 20.Which drawing is the symbol for a wire? (a) a straight line (b) a dot where wires meet (c) many long-short pairs (d) one tall, one short bar
  21. 21.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
  22. 22.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
  23. 23.Which drawing is the symbol for a motor? (a) a circle with A inside (b) triangle against a bar (c) two equal parallel lines (d) a circle with M inside
  24. 24.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a long and a short line (c) triangle, bar and arrows (d) a circle with V inside
  25. 25.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) bulb (c) voltmeter (d) resistor
  26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) battery (c) bulb (d) motor
  27. 27.✏️ 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
  28. 28.Which drawing is the symbol for a switch? (a) a circle with a cross (b) triangle against a bar (c) a dot where wires meet (d) a line lifted at a gap
  29. 29.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
  30. 30.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) two equal parallel lines (c) a circle with V inside (d) a line lifted at a gap
  31. 31.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
  32. 32.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) wire (c) voltmeter (d) motor
  33. 33.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
  34. 34.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) a line lifted at a gap (c) a small empty box (d) triangle against a bar
  35. 35.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) ammeter (c) switch (d) battery
  36. 36.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
  37. 37.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
  38. 38.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False
  39. 39.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  40. 40.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False

Answer key

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

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