Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 379 · 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, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
2. 2.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) capacitor (c) wire (d) switch
3. 3.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a plain rectangle (c) a dot where wires meet (d) two equal parallel lines
4. 4.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with M inside (c) a circle with V inside (d) a circle with A inside
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) junction (c) voltmeter (d) LED
6. 6.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) LED (c) wire (d) cell
8. 8.✏️ 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
9. 9.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
10. 10.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) two or more cell symbols (c) a small empty box (d) triangle against a bar
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) switch (c) LED (d) cell
12. 12.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a line lifted at a gap (c) a plain rectangle (d) a dot where wires meet
13. 13.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) two or more cell symbols (c) many long-short pairs (d) triangle, bar and arrows
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) junction (c) battery (d) switch
15. 15.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
16. 16.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a long and a short line (c) a straight line (d) a circle with A inside
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
18. 18.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
19. 19.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with a cross (c) a circle with A inside (d) a plain rectangle
20. 20.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with a cross (c) a straight line (d) a circle with M inside
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) wire (c) resistor (d) cell
22. 22.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) diode (c) resistor (d) LED
23. 23.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) resistor (c) capacitor (d) junction
25. 25.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a circle with a cross (c) a straight line (d) a plain rectangle
26. 26.True or false: a straight line is the symbol for an LED. (a) True (b) False
27. 27.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) a circle with A inside (c) a straight line (d) a line lifted at a gap
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) motor (c) switch (d) cell
29. 29.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
30. 30.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with a cross (c) one tall, one short bar (d) two equal parallel lines
31. 31.True or false: triangle against a bar is the symbol for an ammeter. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) capacitor (c) battery (d) voltmeter
33. 33.Which drawing is the symbol for a cell? (a) a circle with M inside (b) many long-short pairs (c) a long and a short line (d) a circle with an X in it
34. 34.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) battery (c) LED (d) wire
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) bulb (c) voltmeter (d) battery
37. 37.True or false: a circle with A inside is the symbol for a resistor. (a) False (b) True
38. 38.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
39. 39.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) diode (c) resistor (d) cell

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