Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 224 · 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, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
2. 2.Which drawing is the symbol for a switch? (a) a small empty box (b) a circle with an X in it (c) a circle with a cross (d) a line lifted at a gap
3. 3.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
5. 5.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
6. 6.True or false: a circle with M inside is the symbol for a battery. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) wire (c) resistor (d) ammeter
8. 8.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) bulb (c) LED (d) voltmeter
10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) battery (c) capacitor (d) diode
11. 11.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) ammeter (c) capacitor (d) battery
13. 13.Which drawing is the symbol for a battery? (a) a straight line (b) two or more cell symbols (c) triangle, bar and arrows (d) a plain rectangle
14. 14.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
15. 15.Which drawing is the symbol for an LED? (a) a long and a short line (b) a small empty box (c) triangle, bar and arrows (d) a circle with V inside
16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) switch (c) diode (d) ammeter
17. 17.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) LED (c) resistor (d) diode
18. 18.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a circle with V inside (c) two equal parallel lines (d) a straight line
19. 19.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) voltmeter (c) junction (d) battery
20. 20.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
21. 21.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a line lifted at a gap (c) a circle with M inside (d) a circle with an X in it
22. 22.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
23. 23.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) bulb (d) motor
25. 25.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
26. 26.True or false: a circle with M inside is the symbol for a junction. (a) False (b) True
27. 27.Which drawing is the symbol for a junction? (a) a small empty box (b) a line lifted at a gap (c) a dot where wires meet (d) two equal parallel lines
28. 28.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) resistor (c) battery (d) LED
29. 29.Which drawing is the symbol for a resistor? (a) a small empty box (b) a straight line (c) a circle with a cross (d) two equal parallel lines
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) bulb (c) resistor (d) capacitor
31. 31.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) motor (c) bulb (d) junction
33. 33.True or false: two equal parallel lines is the symbol for a voltmeter. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) switch (c) motor (d) wire
35. 35.Which drawing is the symbol for a diode? (a) a small empty box (b) a plain rectangle (c) a long and a short line (d) triangle against a bar
36. 36.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) diode (c) wire (d) resistor
37. 37.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) battery (c) cell (d) LED
38. 38.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
39. 39.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
40. 40.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False

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