← Circuit symbols lesson New set →

Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 48 · 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 cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
  2. 2.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
  3. 3.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  4. 4.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) motor (c) resistor (d) bulb
  5. 5.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) triangle, bar and arrows (c) a long and a short line (d) one tall, one short bar
  6. 6.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) junction (c) LED (d) bulb
  7. 7.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) two equal parallel lines (c) a line lifted at a gap (d) a circle with an X in it
  8. 8.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
  9. 9.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) cell (c) motor (d) capacitor
  10. 10.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
  11. 11.True or false: many long-short pairs is the symbol for a diode. (a) True (b) False
  12. 12.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
  13. 13.True or false: a dot where wires meet is the symbol for a switch. (a) False (b) True
  14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) diode (c) wire (d) LED
  15. 15.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) resistor (c) motor (d) capacitor
  16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) capacitor (c) battery (d) bulb
  17. 17.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) resistor (c) battery (d) wire
  18. 18.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a dot where wires meet (c) a small empty box (d) many long-short pairs
  19. 19.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
  20. 20.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a line lifted at a gap (c) a circle with a cross (d) many long-short pairs
  21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) diode (c) motor (d) cell
  22. 22.True or false: two equal parallel lines is the symbol for a motor. (a) True (b) False
  23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) battery (c) diode (d) wire
  24. 24.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
  25. 25.True or false: triangle, bar and arrows is the symbol for a battery. (a) False (b) True
  26. 26.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
  27. 27.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) triangle against a bar (c) two equal parallel lines (d) a circle with a cross
  28. 28.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
  29. 29.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
  30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) cell (c) LED (d) motor
  31. 31.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
  32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) resistor (c) battery (d) LED
  33. 33.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
  34. 34.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
  35. 35.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) a circle with A inside (d) a straight line
  36. 36.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
  37. 37.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a plain rectangle (c) a circle with V inside (d) one tall, one short bar
  38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) bulb (c) junction (d) cell
  39. 39.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a straight line (c) a long and a short line (d) a line lifted at a gap
  40. 40.True or false: a straight line is the symbol for a wire. (a) True (b) False

Answer key

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

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