Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 116 · 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 circle with M inside is the symbol for a bulb. (a) False (b) True
2. 2.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
3. 3.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with M inside (c) many long-short pairs (d) one tall, one short bar
4. 4.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) switch (c) cell (d) capacitor
6. 6.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
7. 7.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
8. 8.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a dot where wires meet (c) a long and a short line (d) a circle with V inside
9. 9.True or false: one tall, one short bar is the symbol for an LED. (a) False (b) True
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
11. 11.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with M inside (c) a circle with V inside (d) a circle with A inside
12. 12.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) motor (c) switch (d) resistor
13. 13.True or false: a long and a short line is the symbol for a battery. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) wire (c) bulb (d) battery
15. 15.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
17. 17.True or false: a small empty box is the symbol for a battery. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) junction (c) resistor (d) ammeter
19. 19.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a plain rectangle (c) triangle, bar and arrows (d) two equal parallel lines
20. 20.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a small empty box (c) a line lifted at a gap (d) a straight line
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) diode (c) capacitor (d) bulb
22. 22.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
23. 23.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
24. 24.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) two or more cell symbols (c) a straight line (d) a circle with a cross
25. 25.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) many long-short pairs (c) a long and a short line (d) two equal parallel lines
26. 26.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) LED (c) bulb (d) capacitor
28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) wire (c) battery (d) resistor
29. 29.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
30. 30.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
31. 31.Which drawing is the symbol for a junction? (a) a small empty box (b) two or more cell symbols (c) a dot where wires meet (d) two equal parallel lines
32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) junction (c) cell (d) motor
33. 33.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) wire (c) capacitor (d) ammeter
35. 35.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) triangle, bar and arrows (c) two equal parallel lines (d) many long-short pairs
36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) resistor (c) switch (d) cell
37. 37.True or false: many long-short pairs is the symbol for a resistor. (a) False (b) True
38. 38.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a long and a short line (c) a straight line (d) a small empty box
39. 39.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) bulb (c) wire (d) diode
40. 40.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a straight line (d) a circle with M inside

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