Electronics Worksheet: Circuit Symbols

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

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