Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 87 · 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.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) one tall, one short bar (c) a long and a short line (d) many long-short pairs
2. 2.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
3. 3.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a circle with a cross (c) triangle against a bar (d) a circle with M inside
4. 4.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) junction (c) bulb (d) ammeter
6. 6.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with an X in it (c) two equal parallel lines (d) a long and a short line
7. 7.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) voltmeter (c) ammeter (d) wire
9. 9.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) a long and a short line (c) a circle with V inside (d) triangle against a bar
10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) switch (c) wire (d) LED
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) diode (c) bulb (d) switch
14. 14.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
15. 15.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
16. 16.True or false: a straight line is the symbol for a wire. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) switch (c) capacitor (d) voltmeter
18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) voltmeter (c) battery (d) junction
19. 19.Which drawing is the symbol for an LED? (a) a circle with A inside (b) two or more cell symbols (c) a circle with V inside (d) triangle, bar and arrows
20. 20.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) two or more cell symbols (c) one tall, one short bar (d) a small empty box
21. 21.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
22. 22.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a circle with an X in it (c) two or more cell symbols (d) a dot where wires meet
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) ammeter (c) bulb (d) cell
24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
25. 25.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
26. 26.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a circle with M inside (c) two or more cell symbols (d) triangle against a bar
27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) junction (c) resistor (d) cell
28. 28.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) LED (c) battery (d) motor
29. 29.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) motor (c) voltmeter (d) diode
30. 30.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) switch (c) ammeter (d) wire
32. 32.True or false: a straight line is the symbol for a motor. (a) False (b) True
33. 33.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) resistor (c) motor (d) junction
35. 35.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) a circle with A inside (c) two equal parallel lines (d) a dot where wires meet
36. 36.Which drawing is the symbol for a battery? (a) a straight line (b) a circle with V inside (c) a plain rectangle (d) many long-short pairs
37. 37.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
38. 38.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
39. 39.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
40. 40.True or false: a line lifted at a gap is the symbol for a resistor. (a) True (b) False

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