Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 766 · 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, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
3. 3.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) cell (c) junction (d) switch
4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) battery (c) wire (d) LED
5. 5.Which drawing is the symbol for a diode? (a) a circle with V inside (b) many long-short pairs (c) triangle against a bar (d) a circle with a cross
6. 6.True or false: a straight line is the symbol for a battery. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) wire (c) motor (d) battery
8. 8.Which drawing is the symbol for a cell? (a) a circle with M inside (b) a long and a short line (c) a circle with A inside (d) a circle with an X in it
9. 9.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) voltmeter (c) diode (d) junction
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) bulb (c) voltmeter (d) junction
12. 12.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
13. 13.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
14. 14.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
15. 15.True or false: two or more cell symbols is the symbol for a capacitor. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) voltmeter (c) resistor (d) battery
17. 17.True or false: triangle, bar and arrows is the symbol for a resistor. (a) True (b) False
18. 18.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a straight line (c) many long-short pairs (d) a plain rectangle
19. 19.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
20. 20.True or false: a circle with V inside is the symbol for a diode. (a) True (b) False
21. 21.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
22. 22.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two or more cell symbols (c) two equal parallel lines (d) a dot where wires meet
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) LED (c) motor (d) battery
24. 24.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False
25. 25.Which drawing is the symbol for a switch? (a) a straight line (b) a long and a short line (c) two or more cell symbols (d) a line lifted at a gap
26. 26.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) a plain rectangle (c) a circle with V inside (d) a straight line
27. 27.Which drawing is the symbol for a motor? (a) a small empty box (b) a straight line (c) two equal parallel lines (d) a circle with M inside
28. 28.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) many long-short pairs (c) a circle with an X in it (d) a small empty box
29. 29.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with a cross (c) a straight line (d) one tall, one short bar
30. 30.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) wire (c) cell (d) battery
31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) capacitor (c) motor (d) battery
32. 32.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) junction (c) resistor (d) wire
34. 34.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) two or more cell symbols (c) a circle with a cross (d) triangle, bar and arrows
35. 35.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) resistor (c) switch (d) cell
36. 36.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) ammeter (c) battery (d) LED
38. 38.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
39. 39.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
40. 40.True or false: a long and a short line is the symbol for a cell. (a) False (b) True

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