Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 781 · 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.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
2. 2.True or false: a circle with A inside is the symbol for a switch. (a) False (b) True
3. 3.True or false: a circle with a cross is the symbol for a junction. (a) False (b) True
4. 4.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) battery (c) wire (d) ammeter
6. 6.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) resistor (c) voltmeter (d) ammeter
7. 7.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) resistor (c) junction (d) cell
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) bulb (c) LED (d) motor
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) diode (c) motor (d) battery
11. 11.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
12. 12.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) wire (c) motor (d) battery
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) cell (c) switch (d) LED
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) battery (c) LED (d) bulb
16. 16.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a long and a short line (c) a circle with an X in it (d) a straight line
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) diode (c) switch (d) wire
18. 18.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
19. 19.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with an X in it (c) a long and a short line (d) a circle with M inside
20. 20.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a dot where wires meet (c) a plain rectangle (d) a circle with M inside
21. 21.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
22. 22.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a dot where wires meet (c) a circle with A inside (d) a long and a short line
23. 23.True or false: a small empty box is the symbol for an LED. (a) False (b) True
24. 24.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a plain rectangle (c) a circle with A inside (d) a circle with M inside
25. 25.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) bulb (c) ammeter (d) cell
27. 27.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
28. 28.Which drawing is the symbol for a switch? (a) a long and a short line (b) a line lifted at a gap (c) two equal parallel lines (d) triangle, bar and arrows
29. 29.True or false: a straight line is the symbol for a wire. (a) True (b) False
30. 30.Which drawing is the symbol for an LED? (a) a straight line (b) triangle, bar and arrows (c) a circle with an X in it (d) many long-short pairs
31. 31.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a circle with A inside (c) two equal parallel lines (d) two or more cell symbols
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) LED (c) capacitor (d) switch
33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) LED (c) cell (d) ammeter
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) switch (c) wire (d) ammeter
35. 35.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
36. 36.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
37. 37.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a small empty box (c) a circle with V inside (d) many long-short pairs
38. 38.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
39. 39.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with V inside (c) a circle with M inside (d) a circle with an X in it
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) motor (d) wire

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