Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 547 · 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 a circle with A inside? (a) wire (b) cell (c) battery (d) ammeter
2. 2.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) switch (c) capacitor (d) voltmeter
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
4. 4.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle against a bar (c) a dot where wires meet (d) a circle with a cross
5. 5.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
6. 6.True or false: a circle with V inside is the symbol for an LED. (a) False (b) True
7. 7.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) switch (c) voltmeter (d) motor
9. 9.True or false: a plain rectangle is the symbol for a bulb. (a) False (b) True
10. 10.Which drawing is the symbol for a battery? (a) a small empty box (b) two equal parallel lines (c) many long-short pairs (d) one tall, one short bar
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) wire (c) bulb (d) switch
12. 12.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) resistor (c) LED (d) bulb
13. 13.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) battery (c) diode (d) bulb
14. 14.True or false: a straight line is the symbol for a wire. (a) True (b) False
15. 15.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a circle with M inside (c) many long-short pairs (d) triangle, bar and arrows
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
18. 18.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a circle with A inside (c) a small empty box (d) a circle with a cross
19. 19.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a small empty box (c) a long and a short line (d) a line lifted at a gap
20. 20.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
21. 21.Which drawing is the symbol for a wire? (a) a circle with V inside (b) triangle against a bar (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) motor (b) cell (c) LED (d) voltmeter
23. 23.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
24. 24.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
25. 25.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) cell (c) switch (d) LED
27. 27.Which drawing is the symbol for a diode? (a) a circle with A inside (b) a dot where wires meet (c) triangle against a bar (d) a circle with a cross
28. 28.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
29. 29.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a long and a short line (c) a circle with M inside (d) two or more cell symbols
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) LED (c) diode (d) bulb
31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) LED (d) ammeter
32. 32.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
33. 33.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
34. 34.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
35. 35.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with an X in it (c) many long-short pairs (d) triangle against a bar
36. 36.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) cell (c) resistor (d) capacitor
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) LED (c) switch (d) battery
38. 38.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) bulb (c) junction (d) wire
39. 39.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) ammeter (c) voltmeter (d) capacitor

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