Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 429 · 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.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
2. 2.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) many long-short pairs (d) two equal parallel lines
3. 3.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) cell (c) voltmeter (d) junction
7. 7.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) battery (c) diode (d) capacitor
8. 8.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) a line lifted at a gap (c) two equal parallel lines (d) two or more cell symbols
9. 9.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) ammeter (c) diode (d) switch
10. 10.Which drawing is the symbol for a junction? (a) many long-short pairs (b) two equal parallel lines (c) a long and a short line (d) a dot where wires meet
11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) diode (c) junction (d) battery
12. 12.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) junction (c) motor (d) capacitor
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) resistor (c) junction (d) cell
14. 14.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
15. 15.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) two or more cell symbols (c) two equal parallel lines (d) a plain rectangle
16. 16.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) bulb (c) cell (d) battery
17. 17.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) two or more cell symbols (c) a small empty box (d) a long and a short line
18. 18.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a circle with an X in it (c) a line lifted at a gap (d) a circle with V inside
19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
20. 20.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
21. 21.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a straight line (c) triangle against a bar (d) a dot where wires meet
22. 22.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a small empty box (c) triangle against a bar (d) one tall, one short bar
23. 23.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a circle with A inside (c) a straight line (d) a circle with a cross
24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) bulb (c) cell (d) battery
25. 25.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) battery (c) voltmeter (d) motor
27. 27.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) motor (c) cell (d) bulb
29. 29.True or false: a circle with M inside is the symbol for a battery. (a) True (b) False
30. 30.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
31. 31.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
32. 32.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) triangle against a bar (c) a circle with M inside (d) many long-short pairs
33. 33.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) a line lifted at a gap (c) a circle with a cross (d) two or more cell symbols
34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) LED (c) resistor (d) motor
35. 35.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with a cross (c) a long and a short line (d) a line lifted at a gap
36. 36.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a line lifted at a gap (c) a circle with M inside (d) a long and a short line
37. 37.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
38. 38.True or false: two equal parallel lines is the symbol for a diode. (a) False (b) True
39. 39.True or false: a circle with M inside is the symbol for an LED. (a) False (b) True
40. 40.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True

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