Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 721 · 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 cell? (a) a long and a short line (b) a circle with a cross (c) triangle, bar and arrows (d) a circle with M inside
2. 2.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a long and a short line (c) triangle, bar and arrows (d) a small empty box
3. 3.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) cell (c) diode (d) capacitor
4. 4.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) battery (c) cell (d) diode
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) LED (c) junction (d) battery
7. 7.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a circle with V inside (c) a circle with A inside (d) a dot where wires meet
8. 8.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
9. 9.True or false: a long and a short line is the symbol for a motor. (a) False (b) True
10. 10.Which drawing is the symbol for a cell? (a) a plain rectangle (b) two equal parallel lines (c) one tall, one short bar (d) a circle with an X in it
11. 11.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a circle with a cross (c) two equal parallel lines (d) a small empty box
12. 12.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a dot where wires meet (c) one tall, one short bar (d) triangle, bar and arrows
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
14. 14.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
15. 15.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
16. 16.Which drawing is the symbol for an ammeter? (a) a small empty box (b) triangle against a bar (c) a circle with A inside (d) one tall, one short bar
17. 17.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a line lifted at a gap (c) triangle against a bar (d) a small empty box
18. 18.True or false: two equal parallel lines is the symbol for a diode. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) ammeter (c) cell (d) resistor
20. 20.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) switch (c) ammeter (d) bulb
21. 21.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) switch (c) diode (d) junction
23. 23.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) two equal parallel lines (c) a circle with A inside (d) a long and a short line
24. 24.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) cell (d) switch
25. 25.Which drawing is the symbol for a wire? (a) a straight line (b) triangle against a bar (c) a small empty box (d) a circle with M inside
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) motor (c) voltmeter (d) resistor
27. 27.Which drawing is the symbol for a battery? (a) a circle with a cross (b) many long-short pairs (c) a circle with A inside (d) a straight line
28. 28.True or false: a long and a short line is the symbol for a battery. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) battery (c) voltmeter (d) ammeter
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) battery (c) switch (d) LED
31. 31.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
32. 32.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
33. 33.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
34. 34.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
35. 35.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) bulb (c) voltmeter (d) wire
37. 37.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) junction (c) resistor (d) cell
38. 38.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
39. 39.Which drawing is the symbol for a bulb? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with an X in it (d) a circle with V inside
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) bulb (c) cell (d) junction

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