Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 239 · 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 cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) cell (c) battery (d) bulb
4. 4.True or false: a straight line is the symbol for a wire. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) resistor (c) junction (d) voltmeter
6. 6.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a long and a short line (c) a dot where wires meet (d) triangle, bar and arrows
7. 7.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
8. 8.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
9. 9.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a straight line (c) triangle against a bar (d) a line lifted at a gap
10. 10.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) a circle with A inside (c) two equal parallel lines (d) triangle against a bar
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) switch (c) bulb (d) voltmeter
12. 12.True or false: a line lifted at a gap is the symbol for a junction. (a) False (b) True
13. 13.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
14. 14.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
15. 15.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
16. 16.Which drawing is the symbol for an LED? (a) a circle with M inside (b) triangle against a bar (c) a small empty box (d) triangle, bar and arrows
17. 17.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) junction (c) capacitor (d) LED
18. 18.True or false: a circle with an X in it is the symbol for a resistor. (a) False (b) True
19. 19.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
20. 20.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with A inside (c) a circle with V inside (d) a circle with a cross
21. 21.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) LED (c) bulb (d) resistor
22. 22.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) motor (c) wire (d) voltmeter
24. 24.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) many long-short pairs (c) a circle with M inside (d) a circle with a cross
25. 25.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
26. 26.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
27. 27.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a straight line (c) a circle with A inside (d) a long and a short line
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) bulb (c) switch (d) cell
29. 29.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
30. 30.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a long and a short line (c) a circle with an X in it (d) a plain rectangle
31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) junction (c) LED (d) ammeter
32. 32.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a small empty box (c) triangle against a bar (d) two or more cell symbols
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) bulb (c) switch (d) motor
34. 34.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
35. 35.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a circle with a cross (c) many long-short pairs (d) a long and a short line
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) cell (c) battery (d) voltmeter
37. 37.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) a circle with V inside (d) two equal parallel lines
38. 38.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) diode (c) motor (d) capacitor
40. 40.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False

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