Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 905 · 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: two equal parallel lines is the symbol for an ammeter. (a) False (b) True
2. 2.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
3. 3.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) a circle with A inside (c) a plain rectangle (d) many long-short pairs
4. 4.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a long and a short line (c) a circle with a cross (d) one tall, one short bar
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) diode (c) LED (d) voltmeter
6. 6.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) junction (c) diode (d) switch
7. 7.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) wire (c) junction (d) resistor
8. 8.True or false: a circle with an X in it is the symbol for a diode. (a) False (b) True
9. 9.True or false: a straight line is the symbol for a battery. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) diode (c) switch (d) bulb
11. 11.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) resistor (c) motor (d) battery
13. 13.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
14. 14.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
15. 15.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False
16. 16.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) triangle, bar and arrows (d) a circle with A inside
17. 17.True or false: triangle, bar and arrows is the symbol for a resistor. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) bulb (c) cell (d) voltmeter
19. 19.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
20. 20.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
21. 21.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) a plain rectangle (d) a circle with M inside
22. 22.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) two or more cell symbols (c) a small empty box (d) a straight line
23. 23.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) diode (c) bulb (d) battery
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) junction (c) LED (d) bulb
26. 26.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) capacitor (c) LED (d) motor
27. 27.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
28. 28.Which drawing is the symbol for a motor? (a) a circle with A inside (b) two equal parallel lines (c) a plain rectangle (d) a circle with M inside
29. 29.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
30. 30.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
31. 31.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a line lifted at a gap (c) triangle against a bar (d) many long-short pairs
32. 32.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) LED (c) motor (d) cell
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) cell (c) bulb (d) switch
35. 35.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
36. 36.Which drawing is the symbol for a wire? (a) a straight line (b) one tall, one short bar (c) a circle with A inside (d) a plain rectangle
37. 37.Which drawing is the symbol for an LED? (a) many long-short pairs (b) a plain rectangle (c) triangle, bar and arrows (d) triangle against a bar
38. 38.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
39. 39.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with V inside (c) a circle with M inside (d) a line lifted at a gap
40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False

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