Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 664 · 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) straight lines (b) dotted circles (c) wavy lines (d) little stars
2. 2.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) switch (c) cell (d) LED
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) resistor (c) wire (d) battery
4. 4.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
5. 5.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
6. 6.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a circle with A inside (c) a line lifted at a gap (d) a dot where wires meet
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) cell (c) bulb (d) ammeter
8. 8.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with an X in it (c) a circle with A inside (d) a plain rectangle
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) LED (c) battery (d) cell
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) bulb (c) switch (d) voltmeter
12. 12.Which drawing is the symbol for a wire? (a) a straight line (b) one tall, one short bar (c) two equal parallel lines (d) a dot where wires meet
13. 13.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) voltmeter (c) resistor (d) LED
15. 15.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) two or more cell symbols (c) a long and a short line (d) a line lifted at a gap
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) cell (c) diode (d) wire
17. 17.True or false: triangle, bar and arrows is the symbol for a resistor. (a) False (b) True
18. 18.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
19. 19.True or false: many long-short pairs is the symbol for an LED. (a) True (b) False
20. 20.True or false: a circle with M inside is the symbol for a wire. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) switch (c) wire (d) diode
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) capacitor (c) motor (d) battery
23. 23.Which drawing is the symbol for a motor? (a) a long and a short line (b) many long-short pairs (c) a small empty box (d) a circle with M inside
24. 24.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
25. 25.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with M inside (c) one tall, one short bar (d) a circle with A inside
26. 26.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) capacitor (c) wire (d) switch
27. 27.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) motor (c) cell (d) bulb
29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) resistor (c) switch (d) LED
30. 30.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) two equal parallel lines (c) a circle with a cross (d) two or more cell symbols
31. 31.True or false: a straight line is the symbol for a wire. (a) False (b) True
32. 32.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
33. 33.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
34. 34.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with V inside (c) a dot where wires meet (d) a circle with a cross
35. 35.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) capacitor (c) junction (d) diode
36. 36.Which drawing is the symbol for a battery? (a) many long-short pairs (b) triangle against a bar (c) a circle with V inside (d) a long and a short line
37. 37.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
38. 38.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) triangle, bar and arrows (c) two or more cell symbols (d) two equal parallel lines
39. 39.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
40. 40.Which drawing is the symbol for an LED? (a) a small empty box (b) a plain rectangle (c) a circle with A inside (d) triangle, bar and arrows

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