Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 60 · 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 bulb? (a) a circle with V inside (b) a plain rectangle (c) a long and a short line (d) a circle with an X in it
2. 2.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a circle with an X in it (c) two equal parallel lines (d) triangle, bar and arrows
3. 3.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
4. 4.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) a straight line (c) one tall, one short bar (d) a circle with an X in it
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) voltmeter (c) ammeter (d) wire
6. 6.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) two equal parallel lines (c) triangle, bar and arrows (d) triangle against a bar
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) junction (c) wire (d) cell
8. 8.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a line lifted at a gap (c) a circle with an X in it (d) a small empty box
9. 9.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
11. 11.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a circle with V inside (c) a circle with an X in it (d) a long and a short line
12. 12.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) junction (c) diode (d) capacitor
14. 14.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
15. 15.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) one tall, one short bar (c) a circle with a cross (d) triangle, bar and arrows
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
17. 17.True or false: a circle with V inside is the symbol for an LED. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) bulb (c) resistor (d) switch
19. 19.True or false: a plain rectangle is the symbol for a cell. (a) False (b) True
20. 20.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a straight line (c) triangle, bar and arrows (d) a circle with V inside
21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) capacitor (c) diode (d) voltmeter
22. 22.Which drawing is the symbol for an LED? (a) a circle with a cross (b) a circle with V inside (c) triangle, bar and arrows (d) one tall, one short bar
23. 23.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) wire (c) switch (d) cell
24. 24.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) battery (c) switch (d) resistor
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) battery (c) motor (d) voltmeter
27. 27.True or false: many long-short pairs is the symbol for a motor. (a) True (b) False
28. 28.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a line lifted at a gap (c) many long-short pairs (d) two or more cell symbols
29. 29.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) LED (c) battery (d) motor
30. 30.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a dot where wires meet (c) two or more cell symbols (d) a circle with an X in it
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) junction (c) resistor (d) bulb
32. 32.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) motor (c) LED (d) junction
33. 33.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
34. 34.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
35. 35.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
36. 36.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) one tall, one short bar (c) a circle with V inside (d) a circle with a cross
37. 37.True or false: a small empty box is the symbol for a junction. (a) False (b) True
38. 38.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) battery (c) bulb (d) diode
40. 40.Which drawing is the symbol for a cell? (a) a small empty box (b) triangle against a bar (c) one tall, one short bar (d) a circle with M inside

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