Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 868 · 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.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
2. 2.True or false: a circle with an X in it is the symbol for a cell. (a) True (b) False
3. 3.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
4. 4.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
5. 5.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) two equal parallel lines (c) a line lifted at a gap (d) a dot where wires meet
6. 6.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
7. 7.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a circle with V inside (c) a straight line (d) a circle with an X in it
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
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 triangle, bar and arrows? (a) motor (b) LED (c) cell (d) ammeter
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) voltmeter (c) bulb (d) resistor
12. 12.True or false: triangle against a bar is the symbol for a wire. (a) False (b) True
13. 13.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) ammeter (c) bulb (d) battery
15. 15.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a circle with V inside (d) a small empty box
16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) voltmeter (c) capacitor (d) LED
17. 17.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a circle with M inside (c) triangle against a bar (d) many long-short pairs
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
19. 19.Which drawing is the symbol for an LED? (a) a long and a short line (b) a dot where wires meet (c) a circle with a cross (d) triangle, bar and arrows
20. 20.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a small empty box (c) a circle with M inside (d) a circle with a cross
21. 21.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) bulb (c) motor (d) resistor
22. 22.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
23. 23.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a long and a short line (c) a small empty box (d) two or more cell symbols
24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) cell (c) switch (d) bulb
25. 25.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) ammeter (d) voltmeter
27. 27.True or false: one tall, one short bar is the symbol for a bulb. (a) False (b) True
28. 28.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a line lifted at a gap (c) two or more cell symbols (d) two equal parallel lines
29. 29.True or false: triangle against a bar is the symbol for a cell. (a) False (b) True
30. 30.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a straight line (c) a long and a short line (d) a dot where wires meet
31. 31.Which drawing is the symbol for a motor? (a) a straight line (b) many long-short pairs (c) a circle with M inside (d) two or more cell symbols
32. 32.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) switch (c) battery (d) motor
34. 34.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) motor (c) bulb (d) switch
35. 35.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) capacitor (c) wire (d) junction
37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) cell (c) diode (d) capacitor
38. 38.Which drawing is the symbol for a resistor? (a) a small empty box (b) many long-short pairs (c) a circle with A inside (d) two or more cell symbols
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
40. 40.True or false: one tall, one short bar is the symbol for a diode. (a) True (b) False

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