Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 479 · 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.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) diode (c) cell (d) battery
2. 2.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) resistor (c) motor (d) cell
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) cell (c) voltmeter (d) battery
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) battery (c) switch (d) voltmeter
7. 7.True or false: a small empty box is the symbol for a battery. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) resistor (c) cell (d) capacitor
9. 9.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
10. 10.True or false: triangle, bar and arrows is the symbol for a diode. (a) True (b) False
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
12. 12.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) bulb (c) switch (d) resistor
13. 13.Which drawing is the symbol for a diode? (a) many long-short pairs (b) a circle with a cross (c) a dot where wires meet (d) triangle against a bar
14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) ammeter (c) battery (d) wire
15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) junction (c) bulb (d) capacitor
16. 16.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
17. 17.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with V inside (c) a small empty box (d) triangle, bar and arrows
18. 18.True or false: a line lifted at a gap is the symbol for a wire. (a) False (b) True
19. 19.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) True (b) False
20. 20.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a circle with V inside (c) triangle against a bar (d) a dot where wires meet
21. 21.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) diode (c) bulb (d) switch
22. 22.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle against a bar (c) a circle with a cross (d) two equal parallel lines
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) LED (c) voltmeter (d) motor
24. 24.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) a dot where wires meet (c) many long-short pairs (d) a straight line
25. 25.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) a circle with an X in it (c) two equal parallel lines (d) a circle with M inside
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) cell (c) motor (d) LED
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) motor (c) resistor (d) LED
28. 28.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) two or more cell symbols (c) a circle with a cross (d) a circle with V inside
29. 29.True or false: many long-short pairs is the symbol for an LED. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) wire (c) cell (d) bulb
31. 31.True or false: a long and a short line is the symbol for a battery. (a) False (b) True
32. 32.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a line lifted at a gap (c) a circle with A inside (d) a circle with M inside
33. 33.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) LED (c) diode (d) battery
34. 34.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) junction (c) motor (d) switch
35. 35.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
36. 36.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
37. 37.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) triangle against a bar (c) a circle with an X in it (d) a circle with V inside
38. 38.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
39. 39.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) a small empty box (c) a long and a short line (d) triangle, bar and arrows
40. 40.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True

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