Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 146 · 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 switch? (a) a straight line (b) a circle with A inside (c) a circle with M inside (d) a line lifted at a gap
2. 2.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
4. 4.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
5. 5.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle, bar and arrows (c) a circle with an X in it (d) two or more cell symbols
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) voltmeter (c) LED (d) resistor
7. 7.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) switch (c) LED (d) bulb
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) cell (c) capacitor (d) voltmeter
10. 10.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) wire (c) junction (d) bulb
13. 13.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
14. 14.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
15. 15.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
16. 16.Which drawing is the symbol for a wire? (a) a straight line (b) triangle against a bar (c) a circle with M inside (d) a circle with A inside
17. 17.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
18. 18.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) switch (c) battery (d) bulb
20. 20.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) capacitor (c) battery (d) wire
22. 22.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
23. 23.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a circle with a cross (c) triangle against a bar (d) a circle with M inside
24. 24.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a long and a short line (c) a dot where wires meet (d) a line lifted at a gap
25. 25.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) wire (c) bulb (d) LED
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) junction (c) cell (d) ammeter
27. 27.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) wire (c) resistor (d) LED
28. 28.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) one tall, one short bar (c) two equal parallel lines (d) a circle with M inside
29. 29.True or false: a straight line is the symbol for a wire. (a) True (b) False
30. 30.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a dot where wires meet (c) a small empty box (d) a line lifted at a gap
31. 31.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
32. 32.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a circle with a cross (c) a circle with A inside (d) a line lifted at a gap
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) cell (c) resistor (d) capacitor
34. 34.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) junction (c) wire (d) cell
36. 36.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) triangle, bar and arrows (c) a circle with V inside (d) a straight line
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) bulb (d) cell
38. 38.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) two or more cell symbols (c) a circle with an X in it (d) triangle, bar and arrows
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) voltmeter (c) cell (d) switch
40. 40.True or false: a straight line is the symbol for an ammeter. (a) False (b) True

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