Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 348 · 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 a circle with an X in it? (a) diode (b) junction (c) bulb (d) voltmeter
2. 2.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) many long-short pairs (c) a circle with M inside (d) one tall, one short bar
3. 3.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a straight line (c) a circle with M inside (d) two equal parallel lines
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) junction (c) switch (d) LED
5. 5.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with A inside (d) one tall, one short bar
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
7. 7.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a small empty box (c) two equal parallel lines (d) a circle with V inside
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
9. 9.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a dot where wires meet (c) many long-short pairs (d) triangle against a bar
10. 10.True or false: a small empty box is the symbol for a motor. (a) True (b) False
11. 11.True or false: two or more cell symbols is the symbol for a wire. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) cell (c) diode (d) switch
13. 13.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with M inside (c) a circle with A inside (d) many long-short pairs
14. 14.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) resistor (c) diode (d) switch
15. 15.Which drawing is the symbol for a bulb? (a) a straight line (b) a dot where wires meet (c) triangle against a bar (d) a circle with a cross
16. 16.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) resistor (c) bulb (d) switch
18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) LED (c) battery (d) cell
19. 19.Which drawing is the symbol for an LED? (a) a circle with a cross (b) triangle, bar and arrows (c) many long-short pairs (d) a straight line
20. 20.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) junction (c) wire (d) bulb
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) LED (c) wire (d) capacitor
22. 22.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) cell (c) motor (d) capacitor
24. 24.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) resistor (c) battery (d) diode
25. 25.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) to make it colourful (d) symbols are heavier
26. 26.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
27. 27.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) resistor (c) switch (d) junction
29. 29.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
30. 30.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
31. 31.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a straight line (c) triangle against a bar (d) a circle with a cross
32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) ammeter (d) wire
33. 33.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) LED (c) resistor (d) switch
34. 34.Which drawing is the symbol for a cell? (a) a small empty box (b) one tall, one short bar (c) two equal parallel lines (d) triangle, bar and arrows
35. 35.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
36. 36.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a line lifted at a gap (c) one tall, one short bar (d) a straight line
37. 37.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
38. 38.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) a dot where wires meet (d) a long and a short line
39. 39.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) junction (c) voltmeter (d) wire
40. 40.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) switch (c) ammeter (d) battery

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