Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 853 · 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 one tall, one short bar? (a) bulb (b) junction (c) cell (d) resistor
2. 2.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
3. 3.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
4. 4.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a dot where wires meet (c) one tall, one short bar (d) a long and a short line
5. 5.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) bulb (c) wire (d) junction
7. 7.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with A inside (c) many long-short pairs (d) a circle with V inside
8. 8.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) diode (c) voltmeter (d) ammeter
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
10. 10.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a plain rectangle (d) a circle with V inside
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) battery (c) wire (d) capacitor
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) switch (c) diode (d) bulb
13. 13.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
15. 15.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
16. 16.Which drawing is the symbol for a cell? (a) triangle against a bar (b) a circle with an X in it (c) a small empty box (d) a long and a short line
17. 17.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
18. 18.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with a cross (c) a long and a short line (d) one tall, one short bar
19. 19.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
20. 20.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True
21. 21.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a small empty box (c) a long and a short line (d) a circle with M inside
22. 22.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) cell (c) switch (d) junction
23. 23.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
24. 24.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) voltmeter (c) battery (d) resistor
26. 26.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
27. 27.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with A inside (c) triangle against a bar (d) a plain rectangle
28. 28.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
29. 29.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with a cross (c) a plain rectangle (d) triangle against a bar
30. 30.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
31. 31.True or false: a circle with an X in it is the symbol for a capacitor. (a) False (b) True
32. 32.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) capacitor (c) battery (d) junction
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) LED (c) switch (d) bulb
35. 35.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
36. 36.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a plain rectangle (c) a circle with an X in it (d) one tall, one short bar
37. 37.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) cell (c) bulb (d) capacitor
38. 38.True or false: a small empty box is the symbol for a cell. (a) False (b) True
39. 39.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with A inside (c) a long and a short line (d) a circle with a cross
40. 40.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True

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