Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 907 · 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 cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) motor (c) bulb (d) resistor
3. 3.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) ammeter (c) cell (d) wire
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) voltmeter (c) motor (d) switch
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) bulb (c) battery (d) junction
6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) switch (c) battery (d) voltmeter
7. 7.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) a dot where wires meet (c) a circle with a cross (d) a straight line
8. 8.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
9. 9.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
10. 10.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a circle with an X in it (c) two equal parallel lines (d) triangle, bar and arrows
11. 11.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a plain rectangle (c) a circle with A inside (d) triangle, bar and arrows
12. 12.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
13. 13.True or false: a plain rectangle is the symbol for a bulb. (a) False (b) True
14. 14.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) a straight line (c) a circle with V inside (d) a small empty box
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
16. 16.True or false: a circle with A inside is the symbol for a motor. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) capacitor (c) battery (d) bulb
18. 18.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) one tall, one short bar (c) a small empty box (d) a line lifted at a gap
19. 19.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) cell (d) switch
21. 21.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) switch (c) capacitor (d) motor
23. 23.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) ammeter (c) wire (d) capacitor
24. 24.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
25. 25.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a dot where wires meet (c) triangle against a bar (d) a circle with A inside
26. 26.Which drawing is the symbol for a battery? (a) a long and a short line (b) a small empty box (c) one tall, one short bar (d) two or more cell symbols
27. 27.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with A inside (c) a straight line (d) a long and a short line
28. 28.True or false: a dot where wires meet is the symbol for a resistor. (a) False (b) True
29. 29.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a straight line (c) a plain rectangle (d) a circle with an X in it
30. 30.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
31. 31.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) diode (c) voltmeter (d) resistor
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) junction (c) ammeter (d) battery
34. 34.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
35. 35.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a long and a short line (c) a plain rectangle (d) a circle with a cross
36. 36.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) one tall, one short bar (c) a plain rectangle (d) a long and a short line
37. 37.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) bulb (c) capacitor (d) resistor
38. 38.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) wire (c) bulb (d) capacitor
39. 39.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) switch (d) ammeter
40. 40.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True

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