Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 520 · 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 dot where wires meet? (a) cell (b) junction (c) switch (d) resistor
2. 2.Which drawing is the symbol for a bulb? (a) a long and a short line (b) many long-short pairs (c) a dot where wires meet (d) a circle with an X in it
3. 3.Which drawing is the symbol for an LED? (a) a straight line (b) a circle with M inside (c) triangle, bar and arrows (d) a circle with V inside
4. 4.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a line lifted at a gap (c) two equal parallel lines (d) a circle with V inside
5. 5.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a dot where wires meet (c) a circle with A inside (d) two equal parallel lines
6. 6.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) cell (c) capacitor (d) LED
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) bulb (c) capacitor (d) LED
9. 9.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) triangle, bar and arrows
10. 10.True or false: a small empty box is the symbol for a battery. (a) True (b) False
11. 11.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) junction (c) bulb (d) LED
13. 13.✏️ 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
14. 14.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) triangle, bar and arrows (c) one tall, one short bar (d) two or more cell symbols
15. 15.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
16. 16.Which drawing is the symbol for a battery? (a) a small empty box (b) triangle against a bar (c) two equal parallel lines (d) many long-short pairs
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
18. 18.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
19. 19.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) junction (c) capacitor (d) wire
21. 21.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
22. 22.True or false: a circle with A inside is the symbol for a motor. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) cell (c) resistor (d) junction
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) LED (c) capacitor (d) bulb
25. 25.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) a small empty box (c) many long-short pairs (d) triangle against a bar
26. 26.True or false: a straight line is the symbol for a wire. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) voltmeter (c) capacitor (d) motor
28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) voltmeter (c) wire (d) capacitor
29. 29.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
30. 30.True or false: a circle with V inside is the symbol for a wire. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) LED (c) ammeter (d) diode
32. 32.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) resistor (c) bulb (d) motor
34. 34.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a straight line (c) a line lifted at a gap (d) triangle, bar and arrows
35. 35.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) one tall, one short bar (c) a small empty box (d) a circle with a cross
36. 36.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) many long-short pairs (c) a plain rectangle (d) a circle with V inside
37. 37.True or false: a circle with an X in it is the symbol for a wire. (a) False (b) True
38. 38.True or false: a straight line is the symbol for a switch. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) voltmeter (c) bulb (d) capacitor
40. 40.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False

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