Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 263 · 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.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) LED (c) motor (d) voltmeter
3. 3.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) a circle with an X in it (c) a straight line (d) two equal parallel lines
4. 4.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) capacitor (c) LED (d) battery
5. 5.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) switch (c) resistor (d) capacitor
6. 6.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) many long-short pairs (c) triangle against a bar (d) a circle with V inside
7. 7.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
9. 9.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
10. 10.Which drawing is the symbol for a junction? (a) a circle with M inside (b) triangle against a bar (c) many long-short pairs (d) a dot where wires meet
11. 11.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) a circle with M inside (c) triangle against a bar (d) triangle, bar and arrows
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
13. 13.True or false: one tall, one short bar is the symbol for a capacitor. (a) True (b) False
14. 14.True or false: triangle, bar and arrows is the symbol for a bulb. (a) False (b) True
15. 15.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) a dot where wires meet (c) a long and a short line (d) a circle with A inside
16. 16.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) wire (c) resistor (d) battery
17. 17.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) a circle with M inside (c) a straight line (d) a circle with a cross
18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) motor (c) resistor (d) LED
19. 19.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a circle with M inside (c) a circle with a cross (d) a circle with an X in it
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) voltmeter (c) battery (d) junction
21. 21.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a long and a short line (c) a circle with an X in it (d) a plain rectangle
22. 22.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
23. 23.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
24. 24.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
25. 25.True or false: a circle with A inside is the symbol for a battery. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) battery (c) resistor (d) motor
27. 27.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) switch (c) resistor (d) ammeter
28. 28.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) bulb (c) junction (d) resistor
29. 29.True or false: a circle with M inside is the symbol for a resistor. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) wire (c) resistor (d) capacitor
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) bulb (c) resistor (d) switch
32. 32.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
33. 33.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
34. 34.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) switch (c) ammeter (d) battery
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) switch (c) motor (d) ammeter
37. 37.True or false: two or more cell symbols is the symbol for a wire. (a) True (b) False
38. 38.True or false: a circle with V inside is the symbol for a motor. (a) True (b) False
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) switch (c) wire (d) LED

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