Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 389 · 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.✏️ 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
2. 2.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with M inside (c) a long and a short line (d) a line lifted at a gap
3. 3.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) junction (c) cell (d) LED
5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) resistor (c) wire (d) cell
6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) cell (c) voltmeter (d) battery
7. 7.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) diode (c) resistor (d) motor
8. 8.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
9. 9.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) triangle against a bar (c) a straight line (d) two or more cell symbols
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
11. 11.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with M inside (c) a circle with an X in it (d) a small empty box
12. 12.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) two or more cell symbols (d) a circle with A inside
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) wire (c) bulb (d) motor
14. 14.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) triangle, bar and arrows (c) a circle with a cross (d) a circle with V inside
15. 15.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) ammeter (c) LED (d) motor
17. 17.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) junction (c) cell (d) capacitor
19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) junction (c) battery (d) switch
20. 20.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
21. 21.Which drawing is the symbol for a motor? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with M inside (d) two equal parallel lines
22. 22.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) resistor (c) battery (d) switch
24. 24.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
25. 25.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) ammeter (d) motor
27. 27.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) triangle, bar and arrows (c) a circle with a cross (d) a circle with V inside
28. 28.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) voltmeter (c) diode (d) capacitor
29. 29.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) voltmeter (c) resistor (d) capacitor
31. 31.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a straight line (c) triangle against a bar (d) a plain rectangle
32. 32.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
33. 33.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
34. 34.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
35. 35.True or false: a circle with A inside is the symbol for a capacitor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) junction (c) ammeter (d) cell
37. 37.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) a small empty box (c) a circle with M inside (d) a straight line
38. 38.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
39. 39.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
40. 40.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True

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