Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 462 · 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, which part is drawn as a circle with a cross? (a) switch (b) bulb (c) resistor (d) voltmeter
2. 2.✏️ 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
3. 3.Which drawing is the symbol for an LED? (a) a straight line (b) triangle, bar and arrows (c) one tall, one short bar (d) a dot where wires meet
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) wire (c) bulb (d) battery
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) bulb (c) ammeter (d) switch
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
7. 7.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
8. 8.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
9. 9.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a circle with V inside (c) many long-short pairs (d) a line lifted at a gap
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) switch (c) capacitor (d) diode
12. 12.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) capacitor (c) junction (d) bulb
13. 13.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
14. 14.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a straight line (c) a circle with a cross (d) a circle with A inside
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) bulb (d) switch
16. 16.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
17. 17.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
18. 18.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with an X in it (c) a line lifted at a gap (d) a plain rectangle
19. 19.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) one tall, one short bar (c) a circle with A inside (d) two or more cell symbols
20. 20.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) voltmeter (c) motor (d) resistor
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) junction (c) cell (d) diode
22. 22.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle, bar and arrows (c) a line lifted at a gap (d) a circle with a cross
23. 23.Which drawing is the symbol for a battery? (a) a long and a short line (b) a dot where wires meet (c) a plain rectangle (d) two or more cell symbols
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) LED (c) switch (d) ammeter
25. 25.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) wire (c) junction (d) cell
26. 26.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) a straight line (c) many long-short pairs (d) a circle with M inside
27. 27.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with A inside (c) triangle, bar and arrows (d) a circle with V inside
28. 28.True or false: two equal parallel lines is the symbol for a resistor. (a) True (b) False
29. 29.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with an X in it (c) a circle with V inside (d) a circle with A inside
30. 30.True or false: a circle with A inside is the symbol for a bulb. (a) False (b) True
31. 31.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) triangle against a bar (c) two equal parallel lines (d) a circle with V inside
32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) ammeter (c) wire (d) capacitor
33. 33.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
34. 34.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a long and a short line (c) a circle with a cross (d) a straight line
35. 35.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) bulb (c) resistor (d) LED
36. 36.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a small empty box (c) a circle with V inside (d) many long-short pairs
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) resistor (d) diode
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) voltmeter (c) capacitor (d) junction
39. 39.True or false: a line lifted at a gap is the symbol for a junction. (a) True (b) False
40. 40.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False

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