Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 430 · 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 dot where wires meet is the symbol for a junction. (a) True (b) False
2. 2.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with V inside (c) a circle with a cross (d) two or more cell symbols
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
4. 4.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
5. 5.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) two equal parallel lines (c) one tall, one short bar (d) a plain rectangle
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
7. 7.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
8. 8.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
9. 9.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) battery (c) LED (d) capacitor
11. 11.True or false: triangle against a bar is the symbol for a junction. (a) False (b) True
12. 12.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a dot where wires meet (c) many long-short pairs (d) a circle with A inside
13. 13.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a small empty box (c) a circle with a cross (d) a circle with M inside
14. 14.Which drawing is the symbol for a battery? (a) a long and a short line (b) triangle against a bar (c) a line lifted at a gap (d) many long-short pairs
15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) battery (c) cell (d) bulb
16. 16.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) battery (c) wire (d) cell
18. 18.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) resistor (c) diode (d) voltmeter
20. 20.Which drawing is the symbol for a cell? (a) triangle against a bar (b) a long and a short line (c) a small empty box (d) a circle with a cross
21. 21.Which drawing is the symbol for a wire? (a) a circle with A inside (b) two equal parallel lines (c) a long and a short line (d) a straight line
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) voltmeter (c) wire (d) resistor
23. 23.Which drawing is the symbol for a battery? (a) a long and a short line (b) a plain rectangle (c) one tall, one short bar (d) two or more cell symbols
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) wire (c) junction (d) cell
25. 25.Which drawing is the symbol for a diode? (a) a circle with a cross (b) triangle against a bar (c) triangle, bar and arrows (d) a straight line
26. 26.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) LED (c) resistor (d) wire
28. 28.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) battery (c) cell (d) switch
30. 30.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) capacitor (c) resistor (d) wire
32. 32.Which drawing is the symbol for a junction? (a) a small empty box (b) triangle, bar and arrows (c) a dot where wires meet (d) a line lifted at a gap
33. 33.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) battery (c) resistor (d) junction
34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) LED (c) switch (d) cell
35. 35.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
36. 36.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a line lifted at a gap (c) triangle against a bar (d) many long-short pairs
37. 37.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) bulb (c) wire (d) switch
38. 38.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
39. 39.True or false: a small empty box is the symbol for a switch. (a) False (b) True
40. 40.True or false: a line lifted at a gap is the symbol for a wire. (a) False (b) True

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