Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 248 · 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 voltmeter? (a) a circle with V inside (b) a line lifted at a gap (c) a circle with an X in it (d) a plain rectangle
2. 2.✏️ 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
3. 3.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
4. 4.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
5. 5.Which drawing is the symbol for a battery? (a) a straight line (b) a circle with an X in it (c) a circle with a cross (d) many long-short pairs
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) diode (c) wire (d) bulb
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
8. 8.Which drawing is the symbol for a motor? (a) a circle with V inside (b) a circle with M inside (c) a dot where wires meet (d) a straight line
9. 9.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) wire (c) battery (d) cell
10. 10.True or false: a plain rectangle is the symbol for a battery. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) voltmeter (c) bulb (d) LED
12. 12.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) two equal parallel lines (c) a circle with an X in it (d) triangle, bar and arrows
13. 13.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with a cross (d) triangle against a bar
14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) motor (c) voltmeter (d) junction
15. 15.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
16. 16.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with M inside (c) a circle with a cross (d) a long and a short line
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) switch (c) LED (d) diode
19. 19.True or false: a small empty box is the symbol for a junction. (a) False (b) True
20. 20.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
21. 21.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) triangle, bar and arrows (c) a small empty box (d) a circle with M inside
22. 22.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a circle with M inside (c) a line lifted at a gap (d) a circle with V inside
23. 23.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) resistor (c) bulb (d) motor
25. 25.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
26. 26.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a plain rectangle (c) a long and a short line (d) a circle with V inside
27. 27.True or false: triangle, bar and arrows is the symbol for a diode. (a) True (b) False
28. 28.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
29. 29.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a circle with A inside (c) many long-short pairs (d) a straight line
30. 30.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with a cross (c) a long and a short line (d) one tall, one short bar
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) ammeter (c) resistor (d) LED
32. 32.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) cell (c) switch (d) LED
33. 33.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) battery (c) wire (d) ammeter
35. 35.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a dot where wires meet (c) two equal parallel lines (d) many long-short pairs
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) junction (c) bulb (d) motor
37. 37.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) ammeter (c) resistor (d) capacitor
39. 39.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
40. 40.True or false: a circle with M inside is the symbol for a battery. (a) False (b) True

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