Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 984 · 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 plain rectangle? (a) battery (b) LED (c) capacitor (d) resistor
2. 2.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) diode (c) cell (d) switch
3. 3.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) cell (c) switch (d) bulb
4. 4.Which drawing is the symbol for a switch? (a) a circle with M inside (b) one tall, one short bar (c) a line lifted at a gap (d) triangle against a bar
5. 5.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) capacitor (c) bulb (d) voltmeter
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
9. 9.Which drawing is the symbol for a wire? (a) a straight line (b) triangle against a bar (c) a dot where wires meet (d) triangle, bar and arrows
10. 10.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) many long-short pairs (c) a dot where wires meet (d) a straight line
11. 11.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
12. 12.True or false: a straight line is the symbol for a wire. (a) True (b) False
13. 13.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) a small empty box (c) many long-short pairs (d) a circle with A inside
14. 14.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a small empty box (c) a long and a short line (d) a dot where wires meet
15. 15.Which drawing is the symbol for an LED? (a) a circle with M inside (b) one tall, one short bar (c) a circle with A inside (d) triangle, bar and arrows
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) voltmeter (c) switch (d) junction
17. 17.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
18. 18.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with an X in it (c) a small empty box (d) triangle against a bar
19. 19.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) battery (c) wire (d) switch
21. 21.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
22. 22.True or false: a straight line is the symbol for a bulb. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) bulb (c) junction (d) diode
24. 24.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) bulb (c) cell (d) battery
25. 25.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) capacitor (d) diode
26. 26.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a circle with V inside (c) a circle with an X in it (d) many long-short pairs
27. 27.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) triangle, bar and arrows (c) two equal parallel lines (d) two or more cell symbols
28. 28.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
29. 29.Which drawing is the symbol for a cell? (a) triangle against a bar (b) a long and a short line (c) two or more cell symbols (d) a small empty box
30. 30.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
31. 31.True or false: many long-short pairs is the symbol for a junction. (a) True (b) False
32. 32.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a line lifted at a gap (c) a circle with a cross (d) a dot where wires meet
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) junction (c) diode (d) wire
34. 34.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) capacitor (c) resistor (d) LED
36. 36.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) cell (c) wire (d) junction
38. 38.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) many long-short pairs (c) a plain rectangle (d) one tall, one short bar
39. 39.Which drawing is the symbol for a resistor? (a) a small empty box (b) a straight line (c) triangle, bar and arrows (d) a long and a short line
40. 40.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False

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