Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 487 · 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.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a plain rectangle (c) a long and a short line (d) a circle with M inside
2. 2.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) capacitor (c) diode (d) switch
3. 3.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
4. 4.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with an X in it (c) a dot where wires meet (d) two or more cell symbols
5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) switch (c) bulb (d) ammeter
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) wire (c) ammeter (d) resistor
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
8. 8.True or false: a straight line is the symbol for a wire. (a) True (b) False
9. 9.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) a dot where wires meet (c) a line lifted at a gap (d) triangle against a bar
10. 10.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
11. 11.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
12. 12.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
13. 13.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with an X in it (c) triangle, bar and arrows (d) one tall, one short bar
14. 14.✏️ 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
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) switch (c) capacitor (d) bulb
16. 16.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
17. 17.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a long and a short line (c) many long-short pairs (d) a straight line
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
19. 19.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) ammeter (c) capacitor (d) bulb
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) motor (c) cell (d) diode
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) resistor (c) bulb (d) capacitor
23. 23.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) ammeter (c) motor (d) battery
25. 25.True or false: a small empty box is the symbol for a motor. (a) True (b) False
26. 26.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a circle with an X in it (c) a long and a short line (d) a dot where wires meet
27. 27.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) two or more cell symbols (c) a circle with an X in it (d) a circle with A inside
28. 28.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
29. 29.True or false: a circle with V inside is the symbol for a junction. (a) False (b) True
30. 30.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) LED (c) motor (d) cell
32. 32.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with V inside (c) two equal parallel lines (d) one tall, one short bar
33. 33.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) cell (c) bulb (d) LED
34. 34.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) cell (c) capacitor (d) battery
35. 35.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) ammeter (c) wire (d) diode
37. 37.Which drawing is the symbol for a wire? (a) a circle with a cross (b) one tall, one short bar (c) a long and a short line (d) a straight line
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) junction (c) resistor (d) voltmeter
39. 39.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) bulb (c) wire (d) cell
40. 40.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False

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