Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 639 · 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: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) junction (c) ammeter (d) battery
3. 3.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
6. 6.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) wire (c) motor (d) voltmeter
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
8. 8.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) switch (c) capacitor (d) diode
10. 10.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a circle with a cross (c) triangle against a bar (d) a circle with V inside
11. 11.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with V inside (c) triangle against a bar (d) a dot where wires meet
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) LED (c) diode (d) cell
13. 13.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a long and a short line (c) triangle against a bar (d) a small empty box
14. 14.Which drawing is the symbol for a battery? (a) a long and a short line (b) many long-short pairs (c) a plain rectangle (d) a straight line
15. 15.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a plain rectangle (c) a line lifted at a gap (d) a circle with an X in it
16. 16.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) junction (c) wire (d) voltmeter
18. 18.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
19. 19.Which drawing is the symbol for a bulb? (a) a small empty box (b) a long and a short line (c) triangle, bar and arrows (d) a circle with a cross
20. 20.True or false: a line lifted at a gap is the symbol for a diode. (a) True (b) False
21. 21.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) LED (c) battery (d) bulb
23. 23.Which drawing is the symbol for a capacitor? (a) a small empty box (b) one tall, one short bar (c) two equal parallel lines (d) a circle with an X in it
24. 24.True or false: two equal parallel lines is the symbol for a battery. (a) True (b) False
25. 25.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) bulb (c) wire (d) battery
27. 27.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a circle with a cross (c) a straight line (d) triangle, bar and arrows
28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) diode (c) resistor (d) switch
29. 29.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with an X in it (d) a plain rectangle
30. 30.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) bulb (c) junction (d) switch
31. 31.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) diode (c) cell (d) resistor
32. 32.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with V inside (c) a circle with M inside (d) a circle with a cross
33. 33.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
34. 34.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
35. 35.True or false: a plain rectangle is the symbol for a wire. (a) False (b) True
36. 36.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
37. 37.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) bulb (c) resistor (d) LED
39. 39.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) triangle, bar and arrows (c) a circle with a cross (d) one tall, one short bar
40. 40.True or false: two or more cell symbols is the symbol for an LED. (a) False (b) True

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