Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 414 · 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.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a straight line (c) one tall, one short bar (d) a circle with V inside
2. 2.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) a dot where wires meet (c) two equal parallel lines (d) a circle with V inside
3. 3.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) ammeter (c) cell (d) switch
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
5. 5.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
6. 6.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
7. 7.True or false: two equal parallel lines is the symbol for a voltmeter. (a) False (b) True
8. 8.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) triangle, bar and arrows (c) a small empty box (d) triangle against a bar
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
10. 10.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a circle with a cross (c) triangle, bar and arrows (d) a circle with an X in it
11. 11.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) battery (c) wire (d) voltmeter
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) wire (c) resistor (d) bulb
14. 14.✏️ 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
15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) battery (c) diode (d) capacitor
16. 16.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) resistor (c) bulb (d) battery
18. 18.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) capacitor (c) diode (d) motor
20. 20.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with M inside (c) one tall, one short bar (d) a circle with V inside
21. 21.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) two or more cell symbols (c) many long-short pairs (d) a circle with V inside
22. 22.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) two or more cell symbols (c) a plain rectangle (d) a straight line
23. 23.Which drawing is the symbol for a diode? (a) a circle with a cross (b) triangle against a bar (c) a small empty box (d) a plain rectangle
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) motor (c) ammeter (d) diode
25. 25.True or false: a plain rectangle is the symbol for a junction. (a) True (b) False
26. 26.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
27. 27.Which drawing is the symbol for a battery? (a) a circle with M inside (b) many long-short pairs (c) a circle with an X in it (d) a circle with A inside
28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) battery (c) bulb (d) wire
29. 29.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a small empty box (c) a long and a short line (d) two or more cell symbols
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) voltmeter (c) battery (d) LED
31. 31.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a long and a short line (c) a plain rectangle (d) a circle with an X in it
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) ammeter (c) motor (d) junction
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 triangle against a bar? (a) resistor (b) battery (c) diode (d) switch
35. 35.Which drawing is the symbol for an ammeter? (a) a straight line (b) two or more cell symbols (c) a circle with A inside (d) a circle with a cross
36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) bulb (c) ammeter (d) motor
37. 37.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a plain rectangle (c) a dot where wires meet (d) a circle with a cross
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) ammeter (c) diode (d) voltmeter
39. 39.True or false: two equal parallel lines is the symbol for a battery. (a) True (b) False
40. 40.True or false: two equal parallel lines is the symbol for a junction. (a) True (b) False

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