← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 277 · 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.True or false: a circle with V inside is the symbol for a wire. (a) True (b) False
  2. 2.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a plain rectangle (c) a circle with A inside (d) one tall, one short bar
  3. 3.Which drawing is the symbol for a diode? (a) a small empty box (b) one tall, one short bar (c) triangle against a bar (d) a straight line
  4. 4.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
  5. 5.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) battery (c) wire (d) capacitor
  6. 6.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
  7. 7.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
  8. 8.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
  9. 9.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
  10. 10.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) one tall, one short bar (c) triangle against a bar (d) a line lifted at a gap
  11. 11.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
  12. 12.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with V inside (c) triangle, bar and arrows (d) a circle with a cross
  13. 13.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
  14. 14.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a long and a short line (c) a small empty box (d) a circle with A inside
  15. 15.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
  16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) switch (c) LED (d) bulb
  17. 17.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
  18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) voltmeter (c) capacitor (d) battery
  19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
  20. 20.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) capacitor (c) LED (d) resistor
  21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) LED (c) capacitor (d) junction
  22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) wire (c) voltmeter (d) ammeter
  23. 23.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) switch (c) cell (d) capacitor
  25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) wire (c) motor (d) voltmeter
  26. 26.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
  27. 27.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
  28. 28.True or false: a dot where wires meet is the symbol for an ammeter. (a) False (b) True
  29. 29.True or false: a straight line is the symbol for a wire. (a) True (b) False
  30. 30.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) one tall, one short bar (c) triangle against a bar (d) a plain rectangle
  31. 31.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a circle with an X in it (c) triangle, bar and arrows (d) one tall, one short bar
  32. 32.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) capacitor (c) resistor (d) ammeter
  33. 33.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) junction (c) capacitor (d) cell
  34. 34.Which drawing is the symbol for a junction? (a) a straight line (b) a dot where wires meet (c) a circle with an X in it (d) a circle with M inside
  35. 35.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with M inside (c) a dot where wires meet (d) a circle with a cross
  36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) resistor (c) motor (d) diode
  37. 37.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
  38. 38.True or false: a straight line is the symbol for a switch. (a) True (b) False
  39. 39.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  40. 40.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) motor (c) LED (d) capacitor

Answer key

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

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