Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 445 · 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 switch? (a) two equal parallel lines (b) a small empty box (c) a circle with V inside (d) a line lifted at a gap
2. 2.Which drawing is the symbol for a bulb? (a) a small empty box (b) a long and a short line (c) triangle, bar and arrows (d) a circle with an X in it
3. 3.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) diode (c) voltmeter (d) ammeter
5. 5.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) resistor (c) voltmeter (d) battery
6. 6.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
7. 7.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) LED (c) voltmeter (d) switch
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
10. 10.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a circle with a cross (c) many long-short pairs (d) one tall, one short bar
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
12. 12.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) triangle, bar and arrows (d) many long-short pairs
13. 13.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a line lifted at a gap (c) a dot where wires meet (d) a plain rectangle
14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) battery (c) resistor (d) switch
15. 15.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) wire (c) cell (d) diode
16. 16.Which drawing is the symbol for a cell? (a) a long and a short line (b) a line lifted at a gap (c) two or more cell symbols (d) a plain rectangle
17. 17.Which drawing is the symbol for a wire? (a) a small empty box (b) a straight line (c) two equal parallel lines (d) many long-short pairs
18. 18.✏️ 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
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) junction (c) ammeter (d) cell
20. 20.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) voltmeter (c) capacitor (d) motor
21. 21.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
22. 22.True or false: a circle with an X in it is the symbol for an ammeter. (a) False (b) True
23. 23.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) capacitor (c) bulb (d) battery
25. 25.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) one tall, one short bar (c) a straight line (d) triangle, bar and arrows
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) diode (c) ammeter (d) bulb
27. 27.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with an X in it (c) one tall, one short bar (d) a line lifted at a gap
28. 28.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) resistor (c) ammeter (d) cell
30. 30.True or false: a dot where wires meet is the symbol for a diode. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) battery (c) diode (d) bulb
32. 32.Which drawing is the symbol for a diode? (a) a small empty box (b) a line lifted at a gap (c) triangle against a bar (d) one tall, one short bar
33. 33.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
34. 34.Which drawing is the symbol for an LED? (a) many long-short pairs (b) a line lifted at a gap (c) triangle, bar and arrows (d) two or more cell symbols
35. 35.True or false: a circle with an X in it is the symbol for a battery. (a) False (b) True
36. 36.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) bulb (c) wire (d) LED
38. 38.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
39. 39.True or false: many long-short pairs is the symbol for a bulb. (a) False (b) True
40. 40.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) a circle with M inside (c) two equal parallel lines (d) a circle with an X in it

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