Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 328 · 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 wire? (a) a circle with a cross (b) a small empty box (c) a straight line (d) two equal parallel lines
2. 2.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
3. 3.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a straight line (c) two or more cell symbols (d) a long and a short line
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) motor (c) capacitor (d) resistor
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
6. 6.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a line lifted at a gap (c) triangle against a bar (d) a circle with a cross
7. 7.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) diode (c) bulb (d) voltmeter
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) battery (c) switch (d) resistor
10. 10.True or false: a circle with V inside is the symbol for a motor. (a) True (b) False
11. 11.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
13. 13.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with an X in it (c) triangle, bar and arrows (d) a long and a short line
14. 14.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
15. 15.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) resistor (c) cell (d) bulb
17. 17.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a dot where wires meet (c) a plain rectangle (d) a long and a short line
18. 18.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a line lifted at a gap (c) a circle with M inside (d) a straight line
19. 19.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) cell (c) junction (d) wire
20. 20.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) battery (c) capacitor (d) wire
22. 22.Which drawing is the symbol for a capacitor? (a) a straight line (b) many long-short pairs (c) a circle with an X in it (d) two equal parallel lines
23. 23.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) triangle against a bar (c) triangle, bar and arrows (d) two equal parallel lines
24. 24.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a circle with an X in it (c) a circle with A inside (d) a circle with M inside
25. 25.Which drawing is the symbol for a cell? (a) a plain rectangle (b) triangle, bar and arrows (c) one tall, one short bar (d) two or more cell symbols
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) junction (c) cell (d) switch
27. 27.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a circle with an X in it (c) many long-short pairs (d) a dot where wires meet
28. 28.True or false: a circle with V inside is the symbol for a resistor. (a) True (b) False
29. 29.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
30. 30.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) LED (c) switch (d) junction
32. 32.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) LED (c) bulb (d) battery
34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) battery (c) LED (d) switch
35. 35.True or false: a plain rectangle is the symbol for a wire. (a) False (b) True
36. 36.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
37. 37.True or false: a dot where wires meet is the symbol for a diode. (a) False (b) True
38. 38.Which drawing is the symbol for a resistor? (a) a long and a short line (b) many long-short pairs (c) a small empty box (d) a circle with an X in it
39. 39.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) switch (c) bulb (d) cell
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) motor (c) capacitor (d) ammeter

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