Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 813 · 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 cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
2. 2.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) bulb (c) cell (d) capacitor
3. 3.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) two or more cell symbols (c) a straight line (d) a circle with A inside
4. 4.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
5. 5.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
6. 6.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) a long and a short line (c) two equal parallel lines (d) a circle with a cross
7. 7.True or false: a straight line is the symbol for a wire. (a) True (b) False
8. 8.Which drawing is the symbol for a diode? (a) a plain rectangle (b) a straight line (c) a long and a short line (d) triangle against a bar
9. 9.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
11. 11.Which drawing is the symbol for a wire? (a) a long and a short line (b) a circle with a cross (c) triangle against a bar (d) a straight line
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) motor (c) junction (d) voltmeter
13. 13.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) cell (c) junction (d) resistor
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) resistor (c) motor (d) bulb
15. 15.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with an X in it (c) two or more cell symbols (d) many long-short pairs
16. 16.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a circle with V inside (c) two or more cell symbols (d) a dot where wires meet
17. 17.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) voltmeter (c) battery (d) junction
19. 19.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
20. 20.Which drawing is the symbol for a switch? (a) a small empty box (b) a line lifted at a gap (c) one tall, one short bar (d) triangle against a bar
21. 21.True or false: a line lifted at a gap is the symbol for a bulb. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) battery (c) ammeter (d) cell
23. 23.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
24. 24.Which drawing is the symbol for a motor? (a) a straight line (b) a plain rectangle (c) a circle with M inside (d) a dot where wires meet
25. 25.True or false: a circle with M inside is the symbol for a battery. (a) True (b) False
26. 26.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) ammeter (c) voltmeter (d) motor
28. 28.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a dot where wires meet (c) a circle with an X in it (d) triangle, bar and arrows
29. 29.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) capacitor (c) battery (d) bulb
30. 30.True or false: a small empty box is the symbol for a switch. (a) False (b) True
31. 31.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) switch (c) wire (d) motor
33. 33.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) battery (c) LED (d) resistor
34. 34.Which drawing is the symbol for a cell? (a) a circle with M inside (b) a long and a short line (c) a circle with V inside (d) a dot where wires meet
35. 35.True or false: a small empty box is the symbol for a cell. (a) False (b) True
36. 36.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) a small empty box (c) a circle with V inside (d) triangle, bar and arrows
37. 37.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a straight line (c) a circle with V inside (d) a plain rectangle
38. 38.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) two or more cell symbols (c) a line lifted at a gap (d) a plain rectangle
39. 39.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) LED (c) motor (d) junction

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