Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 251 · 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 bulb? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with an X in it (d) triangle, bar and arrows
2. 2.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) ammeter (c) battery (d) motor
3. 3.True or false: a straight line is the symbol for a wire. (a) True (b) False
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
5. 5.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
6. 6.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) wire (c) cell (d) resistor
8. 8.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a straight line (c) a circle with V inside (d) triangle, bar and arrows
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
10. 10.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) resistor (c) junction (d) ammeter
12. 12.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
13. 13.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) junction (c) LED (d) switch
15. 15.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) capacitor (c) wire (d) bulb
16. 16.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a dot where wires meet (c) a circle with a cross (d) a circle with M inside
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) voltmeter (c) wire (d) battery
18. 18.True or false: a circle with an X in it is the symbol for a diode. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) resistor (d) diode
20. 20.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
21. 21.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) triangle against a bar (c) a long and a short line (d) two equal parallel lines
22. 22.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a line lifted at a gap (c) triangle, bar and arrows (d) a plain rectangle
23. 23.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
24. 24.True or false: a circle with V inside is the symbol for a motor. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) motor (c) battery (d) resistor
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) bulb (c) ammeter (d) switch
27. 27.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) triangle, bar and arrows (c) one tall, one short bar (d) a small empty box
28. 28.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
29. 29.Which drawing is the symbol for an LED? (a) a long and a short line (b) a line lifted at a gap (c) triangle, bar and arrows (d) a small empty box
30. 30.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
31. 31.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with an X in it (c) triangle against a bar (d) a small empty box
32. 32.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) resistor (c) ammeter (d) wire
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) LED (c) capacitor (d) bulb
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) ammeter (c) motor (d) voltmeter
35. 35.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a line lifted at a gap (c) triangle, bar and arrows (d) two or more cell symbols
36. 36.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with an X in it (c) triangle, bar and arrows (d) two or more cell symbols
37. 37.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) capacitor (c) switch (d) bulb
38. 38.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) bulb (c) junction (d) diode
40. 40.True or false: a long and a short line is the symbol for a switch. (a) True (b) False

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