Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 842 · 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) straight lines (b) wavy lines (c) little stars (d) dotted circles
2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) battery (c) wire (d) ammeter
3. 3.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) capacitor (c) resistor (d) cell
4. 4.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) battery (d) bulb
5. 5.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
6. 6.Which drawing is the symbol for a wire? (a) a plain rectangle (b) a small empty box (c) a straight line (d) a circle with V inside
7. 7.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a long and a short line (c) a plain rectangle (d) a circle with A inside
8. 8.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
9. 9.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) LED (c) cell (d) bulb
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) bulb (c) ammeter (d) motor
12. 12.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) two or more cell symbols (c) a dot where wires meet (d) a long and a short line
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) LED (c) capacitor (d) wire
14. 14.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) triangle, bar and arrows (c) a circle with an X in it (d) a small empty box
15. 15.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
16. 16.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) ammeter (c) voltmeter (d) diode
18. 18.True or false: triangle, bar and arrows is the symbol for a switch. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) bulb (c) capacitor (d) switch
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) ammeter (c) resistor (d) cell
21. 21.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) bulb (c) resistor (d) battery
22. 22.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
23. 23.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
24. 24.True or false: a plain rectangle is the symbol for a junction. (a) True (b) False
25. 25.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
26. 26.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with a cross (c) triangle against a bar (d) one tall, one short bar
27. 27.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) motor (c) junction (d) ammeter
28. 28.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
29. 29.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) cell (c) bulb (d) battery
30. 30.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
31. 31.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
32. 32.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a circle with M inside (c) many long-short pairs (d) one tall, one short bar
33. 33.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
34. 34.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a line lifted at a gap (c) a dot where wires meet (d) a long and a short line
35. 35.True or false: a dot where wires meet is the symbol for a cell. (a) True (b) False
36. 36.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) triangle, bar and arrows (c) a circle with M inside (d) one tall, one short bar
37. 37.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) bulb (c) voltmeter (d) LED
38. 38.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) voltmeter (c) bulb (d) switch
39. 39.True or false: a circle with V inside is the symbol for a diode. (a) True (b) False
40. 40.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False

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