Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 63 · 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 cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
2. 2.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) ammeter (c) motor (d) battery
3. 3.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) battery (c) bulb (d) cell
4. 4.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a circle with a cross (c) a small empty box (d) triangle against a bar
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) battery (c) LED (d) wire
6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) capacitor (c) bulb (d) battery
7. 7.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) cell (c) LED (d) junction
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
9. 9.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with a cross (c) a circle with A inside (d) triangle against a bar
10. 10.Which drawing is the symbol for a battery? (a) a circle with V inside (b) triangle, bar and arrows (c) a circle with M inside (d) many long-short pairs
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) switch (c) junction (d) bulb
12. 12.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) voltmeter (c) ammeter (d) switch
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) junction (c) battery (d) switch
14. 14.Which drawing is the symbol for an LED? (a) a long and a short line (b) one tall, one short bar (c) a small empty box (d) triangle, bar and arrows
15. 15.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) resistor (c) LED (d) bulb
17. 17.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) triangle against a bar (c) a circle with A inside (d) triangle, bar and arrows
18. 18.Which drawing is the symbol for an ammeter? (a) a circle with M inside (b) a circle with A inside (c) a circle with an X in it (d) a plain rectangle
19. 19.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a circle with M inside (c) a long and a short line (d) a circle with an X in it
20. 20.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) triangle, bar and arrows (c) two equal parallel lines (d) a small empty box
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) diode (c) battery (d) motor
22. 22.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
23. 23.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) ammeter (c) diode (d) bulb
25. 25.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) LED (c) junction (d) motor
27. 27.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
28. 28.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
29. 29.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a straight line (c) two or more cell symbols (d) one tall, one short bar
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) resistor (c) wire (d) cell
31. 31.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) capacitor (c) cell (d) junction
33. 33.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a circle with an X in it (c) a long and a short line (d) a straight line
34. 34.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a circle with M inside (c) one tall, one short bar (d) two equal parallel lines
35. 35.✏️ 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
36. 36.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
37. 37.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
38. 38.True or false: a small empty box is the symbol for a capacitor. (a) False (b) True
39. 39.True or false: a circle with V inside is the symbol for a junction. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) bulb (c) capacitor (d) switch

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