Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 409 · 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 bulb? (a) a circle with an X in it (b) two equal parallel lines (c) many long-short pairs (d) a line lifted at a gap
2. 2.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) battery (c) junction (d) bulb
3. 3.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) resistor (c) diode (d) ammeter
4. 4.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) cell (c) diode (d) resistor
5. 5.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with a cross (c) a plain rectangle (d) one tall, one short bar
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
7. 7.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) battery (c) voltmeter (d) LED
8. 8.Which drawing is the symbol for a switch? (a) many long-short pairs (b) triangle against a bar (c) a line lifted at a gap (d) a circle with an X in it
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
10. 10.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
11. 11.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) bulb (c) resistor (d) battery
13. 13.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with M inside (c) triangle against a bar (d) a circle with an X in it
14. 14.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) wire (c) bulb (d) switch
16. 16.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False
17. 17.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle, bar and arrows (c) a long and a short line (d) a circle with V inside
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) cell (c) bulb (d) voltmeter
19. 19.True or false: two equal parallel lines is the symbol for a junction. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) motor (c) voltmeter (d) cell
21. 21.True or false: triangle against a bar is the symbol for a cell. (a) False (b) True
22. 22.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
23. 23.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) two or more cell symbols (c) a line lifted at a gap (d) triangle against a bar
24. 24.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) two or more cell symbols (c) many long-short pairs (d) a small empty box
25. 25.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) junction (c) capacitor (d) switch
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) ammeter (c) bulb (d) voltmeter
27. 27.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) bulb (c) battery (d) switch
28. 28.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) ammeter (c) voltmeter (d) LED
29. 29.True or false: many long-short pairs is the symbol for an ammeter. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) junction (c) switch (d) capacitor
31. 31.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
32. 32.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a long and a short line (c) a line lifted at a gap (d) a circle with V inside
33. 33.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
34. 34.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) cell (c) diode (d) wire
36. 36.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a straight line (c) a line lifted at a gap (d) a circle with M inside
37. 37.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
38. 38.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a circle with V inside (c) many long-short pairs (d) two equal parallel lines
39. 39.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
40. 40.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False

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