Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 654 · 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 triangle against a bar? (a) bulb (b) junction (c) diode (d) switch
2. 2.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
3. 3.Which drawing is the symbol for an LED? (a) a circle with a cross (b) a straight line (c) triangle against a bar (d) triangle, bar and arrows
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) bulb (c) diode (d) cell
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) bulb (c) battery (d) capacitor
6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) cell (c) wire (d) voltmeter
7. 7.Which drawing is the symbol for a diode? (a) a circle with M inside (b) two equal parallel lines (c) a dot where wires meet (d) triangle against a bar
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) ammeter (c) diode (d) wire
9. 9.Which drawing is the symbol for a cell? (a) a circle with M inside (b) a long and a short line (c) triangle, bar and arrows (d) a straight line
10. 10.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
11. 11.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with a cross (c) a plain rectangle (d) a circle with V inside
12. 12.Which drawing is the symbol for a junction? (a) a circle with A inside (b) triangle, bar and arrows (c) a straight line (d) a dot where wires meet
13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) LED (c) battery (d) wire
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
15. 15.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) ammeter (c) switch (d) cell
16. 16.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) bulb (c) cell (d) LED
17. 17.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
18. 18.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) wire (c) cell (d) LED
20. 20.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False
21. 21.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
22. 22.True or false: a circle with a cross is the symbol for a motor. (a) True (b) False
23. 23.Which drawing is the symbol for a bulb? (a) a straight line (b) a small empty box (c) a circle with an X in it (d) a dot where wires meet
24. 24.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
25. 25.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
26. 26.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
27. 27.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
28. 28.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
29. 29.Which drawing is the symbol for a motor? (a) a small empty box (b) two or more cell symbols (c) a circle with M inside (d) a dot where wires meet
30. 30.True or false: a circle with A inside is the symbol for a resistor. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) ammeter (c) battery (d) cell
32. 32.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a circle with A inside (c) a small empty box (d) two equal parallel lines
33. 33.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) voltmeter (c) junction (d) bulb
35. 35.Which drawing is the symbol for a wire? (a) a long and a short line (b) a straight line (c) one tall, one short bar (d) two equal parallel lines
36. 36.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a circle with V inside (c) triangle against a bar (d) two or more cell symbols
37. 37.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
38. 38.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a straight line (c) a circle with a cross (d) a line lifted at a gap
39. 39.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) capacitor (c) battery (d) voltmeter

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