Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 345 · 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 circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) resistor (c) ammeter (d) battery
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) resistor (c) cell (d) bulb
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) voltmeter (d) battery
5. 5.Which drawing is the symbol for a diode? (a) a circle with M inside (b) a circle with A inside (c) a small empty box (d) triangle against a bar
6. 6.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) motor (c) cell (d) switch
8. 8.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) a plain rectangle (d) a circle with an X in it
9. 9.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with an X in it (c) a straight line (d) a circle with V inside
10. 10.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a circle with M inside (c) a circle with a cross (d) a small empty box
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
12. 12.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a circle with a cross (c) a circle with A inside (d) a straight line
13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) bulb (c) battery (d) switch
14. 14.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) voltmeter (c) capacitor (d) ammeter
16. 16.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a line lifted at a gap (c) a circle with a cross (d) a circle with an X in it
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) LED (c) bulb (d) junction
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) battery (c) capacitor (d) diode
19. 19.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
20. 20.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) motor (c) cell (d) junction
22. 22.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
23. 23.True or false: a plain rectangle is the symbol for an LED. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) diode (c) junction (d) switch
25. 25.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
26. 26.True or false: a straight line is the symbol for a cell. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) switch (c) wire (d) battery
28. 28.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
29. 29.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) cell (c) switch (d) LED
31. 31.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) voltmeter (c) battery (d) resistor
33. 33.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
34. 34.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a straight line (c) a long and a short line (d) triangle against a bar
35. 35.True or false: a long and a short line is the symbol for a battery. (a) False (b) True
36. 36.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a plain rectangle (c) a circle with A inside (d) a dot where wires meet
37. 37.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a circle with a cross (c) a plain rectangle (d) two or more cell symbols
38. 38.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
39. 39.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
40. 40.Which drawing is the symbol for a motor? (a) a straight line (b) two equal parallel lines (c) a long and a short line (d) a circle with M inside

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