Electronics Worksheet: Circuit Symbols

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

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