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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 111 · 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.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
  2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) cell (c) switch (d) battery
  3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
  4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
  5. 5.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
  6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) capacitor (c) bulb (d) cell
  7. 7.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
  8. 8.True or false: a straight line is the symbol for a wire. (a) False (b) True
  9. 9.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a plain rectangle (c) a long and a short line (d) triangle, bar and arrows
  10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) motor (d) battery
  11. 11.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) battery (c) motor (d) junction
  12. 12.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
  13. 13.Which drawing is the symbol for an LED? (a) a circle with a cross (b) a small empty box (c) triangle, bar and arrows (d) triangle against a bar
  14. 14.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a plain rectangle (c) a dot where wires meet (d) a circle with M inside
  15. 15.Which drawing is the symbol for a battery? (a) many long-short pairs (b) triangle, bar and arrows (c) a circle with an X in it (d) a circle with V inside
  16. 16.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) a straight line (c) a long and a short line (d) two equal parallel lines
  17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) cell (d) motor
  18. 18.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) bulb (c) resistor (d) cell
  19. 19.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) cell (c) resistor (d) voltmeter
  20. 20.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
  21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) resistor (c) cell (d) bulb
  22. 22.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a plain rectangle (c) a circle with a cross (d) a small empty box
  23. 23.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a line lifted at a gap (c) a small empty box (d) a dot where wires meet
  24. 24.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a circle with M inside (c) a small empty box (d) a straight line
  25. 25.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
  26. 26.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) resistor (c) diode (d) ammeter
  27. 27.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
  28. 28.True or false: two or more cell symbols is the symbol for a wire. (a) False (b) True
  29. 29.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) LED (c) battery (d) switch
  30. 30.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
  31. 31.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) switch (c) capacitor (d) bulb
  33. 33.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
  34. 34.True or false: triangle, bar and arrows is the symbol for a diode. (a) True (b) False
  35. 35.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) motor (d) diode
  37. 37.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
  38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) wire (c) ammeter (d) cell
  39. 39.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
  40. 40.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False

Answer key

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

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