Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 504 · 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 circle with M inside? (a) switch (b) capacitor (c) junction (d) motor
2. 2.True or false: a circle with an X in it is the symbol for a capacitor. (a) False (b) True
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
4. 4.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
5. 5.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) motor (c) resistor (d) switch
7. 7.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) wire (c) LED (d) battery
8. 8.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
9. 9.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
10. 10.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
12. 12.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) many long-short pairs (c) a straight line (d) a circle with M inside
13. 13.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
14. 14.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with A inside (d) one tall, one short bar
15. 15.Which drawing is the symbol for an LED? (a) a small empty box (b) triangle, bar and arrows (c) a circle with A inside (d) a long and a short line
16. 16.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) a straight line (c) a small empty box (d) two equal parallel lines
17. 17.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with an X in it (c) triangle, bar and arrows (d) one tall, one short bar
18. 18.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
19. 19.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) ammeter (c) battery (d) wire
21. 21.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) cell (c) switch (d) resistor
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) capacitor (c) diode (d) switch
23. 23.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a circle with a cross (c) triangle against a bar (d) two equal parallel lines
24. 24.True or false: a circle with V inside is the symbol for a capacitor. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) battery (c) diode (d) switch
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) cell (c) LED (d) capacitor
27. 27.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) resistor (c) capacitor (d) wire
28. 28.True or false: triangle, bar and arrows is the symbol for a resistor. (a) False (b) True
29. 29.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) voltmeter (c) wire (d) diode
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) motor (c) voltmeter (d) bulb
32. 32.True or false: many long-short pairs is the symbol for a resistor. (a) True (b) False
33. 33.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a circle with A inside (c) a plain rectangle (d) two equal parallel lines
34. 34.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
35. 35.True or false: a dot where wires meet is the symbol for a resistor. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) wire (c) capacitor (d) LED
37. 37.True or false: two equal parallel lines is the symbol for a junction. (a) True (b) False
38. 38.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
39. 39.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a circle with A inside (c) many long-short pairs (d) a small empty box
40. 40.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a circle with a cross (c) a long and a short line (d) a circle with V inside

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