Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 351 · 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, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
2. 2.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
3. 3.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
4. 4.✏️ 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
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
6. 6.Which drawing is the symbol for a motor? (a) a straight line (b) a circle with M inside (c) a long and a short line (d) a circle with an X in it
7. 7.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a small empty box (c) a circle with an X in it (d) triangle against a bar
8. 8.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with V inside (c) triangle, bar and arrows (d) two or more cell symbols
9. 9.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) resistor (c) motor (d) ammeter
11. 11.Which drawing is the symbol for an ammeter? (a) a small empty box (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with A inside
12. 12.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) capacitor (c) voltmeter (d) wire
14. 14.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a plain rectangle (c) a dot where wires meet (d) triangle against a bar
15. 15.True or false: a dot where wires meet is the symbol for a wire. (a) True (b) False
16. 16.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
17. 17.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
18. 18.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a dot where wires meet (c) one tall, one short bar (d) many long-short pairs
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) LED (c) junction (d) voltmeter
20. 20.Which drawing is the symbol for a battery? (a) a circle with a cross (b) many long-short pairs (c) a circle with M inside (d) a circle with an X in it
21. 21.Which drawing is the symbol for an LED? (a) a circle with A inside (b) two or more cell symbols (c) a small empty box (d) triangle, bar and arrows
22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) motor (c) voltmeter (d) cell
23. 23.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) cell (c) ammeter (d) wire
24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) bulb (c) ammeter (d) cell
25. 25.Which drawing is the symbol for a wire? (a) a straight line (b) two equal parallel lines (c) triangle, bar and arrows (d) a long and a short line
26. 26.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) wire (c) capacitor (d) battery
28. 28.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) wire (c) battery (d) diode
30. 30.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) capacitor (c) switch (d) wire
32. 32.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) motor (c) diode (d) switch
33. 33.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) cell (c) motor (d) junction
34. 34.True or false: a circle with a cross is the symbol for a voltmeter. (a) False (b) True
35. 35.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
36. 36.True or false: a straight line is the symbol for a wire. (a) True (b) False
37. 37.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with a cross (c) a circle with A inside (d) a dot where wires meet
38. 38.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
39. 39.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a long and a short line (c) many long-short pairs (d) a circle with a cross
40. 40.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a long and a short line (c) a circle with V inside (d) triangle, bar and arrows

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