Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 12 · 40 questions

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.

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

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