Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 286 · 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: one tall, one short bar is the symbol for a cell. (a) False (b) True
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
3. 3.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a plain rectangle (c) a small empty box (d) two equal parallel lines
4. 4.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) bulb (c) diode (d) cell
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) bulb (c) voltmeter (d) motor
7. 7.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) switch (c) battery (d) motor
8. 8.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
9. 9.Which drawing is the symbol for a wire? (a) a straight line (b) many long-short pairs (c) one tall, one short bar (d) a line lifted at a gap
10. 10.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) cell (c) LED (d) wire
12. 12.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
13. 13.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a plain rectangle (c) a dot where wires meet (d) a circle with M inside
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) wire (c) LED (d) switch
15. 15.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
16. 16.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a plain rectangle (c) a circle with a cross (d) two or more cell symbols
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) diode (d) wire
18. 18.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
19. 19.Which drawing is the symbol for a battery? (a) a small empty box (b) a circle with M inside (c) a circle with V inside (d) two or more cell symbols
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) voltmeter (c) wire (d) switch
21. 21.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
22. 22.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) many long-short pairs (c) triangle, bar and arrows (d) one tall, one short bar
23. 23.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a circle with V inside (c) a small empty box (d) a line lifted at a gap
24. 24.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
25. 25.✏️ 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
26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) switch (c) capacitor (d) wire
27. 27.True or false: a straight line is the symbol for a wire. (a) True (b) False
28. 28.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a straight line (c) a circle with a cross (d) a dot where wires meet
29. 29.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a dot where wires meet (c) a long and a short line (d) a circle with M inside
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) bulb (c) ammeter (d) resistor
31. 31.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a small empty box (c) triangle, bar and arrows (d) a plain rectangle
32. 32.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) resistor (c) wire (d) junction
33. 33.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a dot where wires meet (c) a small empty box (d) one tall, one short bar
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) bulb (c) LED (d) battery
35. 35.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
36. 36.Which drawing is the symbol for a cell? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with an X in it (d) a line lifted at a gap
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) bulb (c) voltmeter (d) diode
38. 38.True or false: a plain rectangle is the symbol for a battery. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) ammeter (c) bulb (d) switch
40. 40.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False

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