Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 697 · 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 small empty box? (a) capacitor (b) resistor (c) wire (d) switch
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
3. 3.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) resistor (c) voltmeter (d) battery
4. 4.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with an X in it (c) a small empty box (d) a circle with V inside
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
6. 6.True or false: a circle with a cross is the symbol for a capacitor. (a) False (b) True
7. 7.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) switch (c) bulb (d) capacitor
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) ammeter (c) battery (d) bulb
10. 10.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
11. 11.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with an X in it (c) a line lifted at a gap (d) two or more cell symbols
12. 12.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a small empty box (c) a long and a short line (d) a straight line
13. 13.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) battery (c) ammeter (d) capacitor
14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) wire (d) ammeter
15. 15.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) diode (c) resistor (d) ammeter
17. 17.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a small empty box (c) a circle with a cross (d) a circle with V inside
18. 18.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
19. 19.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) motor (c) junction (d) ammeter
21. 21.Which drawing is the symbol for a resistor? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with V inside (d) a small empty box
22. 22.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
23. 23.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) junction (c) ammeter (d) diode
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) ammeter (c) resistor (d) bulb
26. 26.True or false: a straight line is the symbol for a wire. (a) True (b) False
27. 27.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) voltmeter (c) wire (d) junction
29. 29.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) LED (c) bulb (d) wire
30. 30.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
31. 31.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) many long-short pairs (c) two or more cell symbols (d) a small empty box
32. 32.Which drawing is the symbol for a diode? (a) a plain rectangle (b) a line lifted at a gap (c) triangle against a bar (d) triangle, bar and arrows
33. 33.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a circle with V inside (c) many long-short pairs (d) a circle with an X in it
34. 34.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) switch (c) voltmeter (d) battery
35. 35.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a long and a short line (c) a line lifted at a gap (d) two or more cell symbols
36. 36.Which drawing is the symbol for a bulb? (a) a straight line (b) a circle with a cross (c) a plain rectangle (d) a small empty box
37. 37.True or false: a line lifted at a gap is the symbol for a junction. (a) False (b) True
38. 38.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) bulb (d) capacitor
40. 40.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) resistor (c) bulb (d) battery

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