Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 793 · 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 triangle, bar and arrows? (a) wire (b) LED (c) resistor (d) battery
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
3. 3.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
4. 4.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) two or more cell symbols (c) two equal parallel lines (d) a plain rectangle
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) ammeter (c) junction (d) motor
6. 6.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
7. 7.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) triangle against a bar (c) a straight line (d) a dot where wires meet
8. 8.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) diode (c) battery (d) bulb
10. 10.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
11. 11.True or false: a circle with A inside is the symbol for a switch. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) motor (c) diode (d) voltmeter
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) resistor (c) switch (d) LED
14. 14.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a long and a short line (c) many long-short pairs (d) triangle against a bar
15. 15.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
16. 16.Which drawing is the symbol for a motor? (a) a straight line (b) a circle with M inside (c) two equal parallel lines (d) many long-short pairs
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) ammeter (c) diode (d) resistor
18. 18.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) bulb (c) capacitor (d) LED
19. 19.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
20. 20.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
21. 21.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
22. 22.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a dot where wires meet (c) two equal parallel lines (d) a small empty box
23. 23.True or false: a circle with an X in it is the symbol for a diode. (a) True (b) False
24. 24.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
25. 25.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
26. 26.True or false: a circle with M inside is the symbol for a wire. (a) True (b) False
27. 27.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) many long-short pairs (c) a small empty box (d) a dot where wires meet
28. 28.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) capacitor (c) cell (d) ammeter
29. 29.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a dot where wires meet (d) triangle against a bar
30. 30.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
31. 31.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a dot where wires meet (c) a small empty box (d) two or more cell symbols
32. 32.Which drawing is the symbol for a bulb? (a) a small empty box (b) a long and a short line (c) a circle with a cross (d) one tall, one short bar
33. 33.Which drawing is the symbol for a cell? (a) many long-short pairs (b) one tall, one short bar (c) a plain rectangle (d) a circle with a cross
34. 34.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) bulb (c) voltmeter (d) wire
35. 35.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
36. 36.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) battery (c) voltmeter (d) switch
38. 38.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) bulb (c) capacitor (d) switch
39. 39.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with M inside (c) a straight line (d) a circle with A inside
40. 40.True or false: many long-short pairs is the symbol for a diode. (a) False (b) True

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