Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 807 · 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.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) a circle with V inside (d) triangle against a bar
2. 2.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a circle with A inside (c) a line lifted at a gap (d) two equal parallel lines
3. 3.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) resistor (c) junction (d) diode
4. 4.True or false: a small empty box is the symbol for a cell. (a) False (b) True
5. 5.True or false: a plain rectangle is the symbol for a battery. (a) True (b) False
6. 6.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a circle with A inside (c) a circle with V inside (d) two or more cell symbols
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
8. 8.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) diode (c) battery (d) motor
10. 10.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) resistor (c) capacitor (d) diode
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
13. 13.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) resistor (c) voltmeter (d) LED
14. 14.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) two equal parallel lines (c) a dot where wires meet (d) a line lifted at a gap
15. 15.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a plain rectangle (c) a dot where wires meet (d) one tall, one short bar
16. 16.Which drawing is the symbol for a diode? (a) a long and a short line (b) a circle with A inside (c) two equal parallel lines (d) triangle against a bar
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) bulb (c) motor (d) junction
18. 18.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
19. 19.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
20. 20.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) many long-short pairs (c) triangle, bar and arrows (d) one tall, one short bar
21. 21.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a line lifted at a gap (c) a circle with M inside (d) a circle with a cross
22. 22.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) battery (d) switch
24. 24.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) resistor (c) LED (d) voltmeter
25. 25.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) wire (c) capacitor (d) cell
26. 26.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
27. 27.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with M inside (c) a dot where wires meet (d) triangle against a bar
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) diode (c) cell (d) voltmeter
29. 29.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
30. 30.True or false: one tall, one short bar is the symbol for a capacitor. (a) False (b) True
31. 31.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a long and a short line (c) many long-short pairs (d) a circle with M inside
32. 32.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) ammeter (c) battery (d) junction
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) switch (c) motor (d) bulb
35. 35.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) two or more cell symbols (c) a circle with an X in it (d) a circle with A inside
36. 36.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
37. 37.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
38. 38.True or false: triangle against a bar is the symbol for a cell. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) ammeter (c) motor (d) resistor
40. 40.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) bulb (c) cell (d) capacitor

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