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Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 695 · 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: one tall, one short bar is the symbol for a cell. (a) True (b) False
  2. 2.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a circle with A inside (c) two or more cell symbols (d) a circle with M inside
  3. 3.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) voltmeter (c) diode (d) ammeter
  4. 4.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) junction (c) ammeter (d) cell
  5. 5.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a straight line (c) a small empty box (d) two equal parallel lines
  6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
  7. 7.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with a cross (c) many long-short pairs (d) a circle with V inside
  8. 8.Which drawing is the symbol for a battery? (a) many long-short pairs (b) two equal parallel lines (c) a circle with V inside (d) a circle with M inside
  9. 9.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
  10. 10.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
  11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) bulb (c) switch (d) diode
  12. 12.True or false: a circle with M inside is the symbol for a resistor. (a) False (b) True
  13. 13.Which drawing is the symbol for an LED? (a) a straight line (b) triangle, bar and arrows (c) a plain rectangle (d) a circle with M inside
  14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) junction (c) battery (d) wire
  15. 15.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
  16. 16.True or false: two or more cell symbols is the symbol for an LED. (a) False (b) True
  17. 17.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
  18. 18.True or false: many long-short pairs is the symbol for a diode. (a) False (b) True
  19. 19.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
  20. 20.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a line lifted at a gap (c) one tall, one short bar (d) two or more cell symbols
  21. 21.True or false: one tall, one short bar is the symbol for a capacitor. (a) True (b) False
  22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) bulb (c) cell (d) switch
  23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) bulb (c) switch (d) cell
  24. 24.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) resistor (c) bulb (d) voltmeter
  25. 25.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) triangle, bar and arrows (c) a small empty box (d) a line lifted at a gap
  26. 26.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
  27. 27.True or false: a small empty box is the symbol for a switch. (a) False (b) True
  28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) ammeter (c) switch (d) diode
  29. 29.True or false: a small empty box is the symbol for a diode. (a) True (b) False
  30. 30.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True
  31. 31.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
  32. 32.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
  33. 33.True or false: a long and a short line is the symbol for a diode. (a) False (b) True
  34. 34.Which drawing is the symbol for a battery? (a) a straight line (b) one tall, one short bar (c) two or more cell symbols (d) a long and a short line
  35. 35.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
  36. 36.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
  37. 37.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) triangle against a bar (c) many long-short pairs (d) a circle with a cross
  38. 38.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) junction (c) cell (d) battery
  39. 39.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a circle with V inside (c) two or more cell symbols (d) a long and a short line
  40. 40.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) wire (c) switch (d) diode

Answer key

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

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