Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 153 · 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) little stars (c) dotted circles (d) wavy lines
2. 2.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
3. 3.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) a circle with V inside (c) two equal parallel lines (d) a circle with an X in it
4. 4.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) a circle with A inside (d) a circle with an X in it
5. 5.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
6. 6.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
7. 7.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a circle with V inside (c) a long and a short line (d) a dot where wires meet
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) diode (c) motor (d) bulb
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) cell (c) bulb (d) diode
11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) diode (c) junction (d) resistor
12. 12.Which drawing is the symbol for a battery? (a) a circle with A inside (b) one tall, one short bar (c) two or more cell symbols (d) a straight line
13. 13.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
14. 14.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a straight line (c) a circle with A inside (d) a line lifted at a gap
15. 15.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) battery (c) cell (d) switch
16. 16.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) two equal parallel lines (d) two or more cell symbols
17. 17.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) one tall, one short bar (c) a plain rectangle (d) a long and a short line
18. 18.True or false: triangle, bar and arrows is the symbol for a motor. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) motor (c) bulb (d) diode
20. 20.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) junction (c) wire (d) ammeter
22. 22.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) two equal parallel lines (c) a circle with an X in it (d) one tall, one short bar
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: two or more cell symbols is the symbol for a battery. (a) False (b) True
25. 25.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a circle with an X in it (c) a circle with A inside (d) a straight line
26. 26.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) junction (c) bulb (d) voltmeter
28. 28.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) LED (c) battery (d) motor
29. 29.True or false: a circle with V inside is the symbol for a motor. (a) True (b) False
30. 30.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False
31. 31.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
32. 32.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
33. 33.True or false: a dot where wires meet is the symbol for an LED. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) bulb (c) cell (d) diode
35. 35.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) cell (c) motor (d) wire
37. 37.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) wire (d) switch
38. 38.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) capacitor (c) voltmeter (d) wire
40. 40.Which drawing is the symbol for a cell? (a) a long and a short line (b) a dot where wires meet (c) triangle against a bar (d) many long-short pairs

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