Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 312 · 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 an ammeter? (a) one tall, one short bar (b) a plain rectangle (c) a circle with A inside (d) a long and a short line
2. 2.True or false: a straight line is the symbol for a wire. (a) True (b) False
3. 3.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) capacitor (c) bulb (d) battery
6. 6.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a small empty box (c) many long-short pairs (d) one tall, one short bar
7. 7.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a small empty box (c) two equal parallel lines (d) a long and a short line
8. 8.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
9. 9.Which drawing is the symbol for a cell? (a) a long and a short line (b) two equal parallel lines (c) a circle with a cross (d) a dot where wires meet
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) resistor (c) battery (d) LED
11. 11.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) junction (d) capacitor
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) cell (c) wire (d) capacitor
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) voltmeter (c) switch (d) cell
16. 16.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a long and a short line (c) a dot where wires meet (d) triangle against a bar
17. 17.True or false: triangle against a bar is the symbol for a junction. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) ammeter (c) bulb (d) resistor
19. 19.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a circle with V inside (c) two or more cell symbols (d) a dot where wires meet
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) switch (c) cell (d) wire
21. 21.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) motor (c) switch (d) wire
22. 22.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
23. 23.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a dot where wires meet (c) a circle with an X in it (d) a straight line
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) battery (c) bulb (d) cell
25. 25.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
26. 26.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a circle with A inside (c) two or more cell symbols (d) a long and a short line
27. 27.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a small empty box (c) a circle with M inside (d) two equal parallel lines
28. 28.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) battery (c) capacitor (d) LED
30. 30.True or false: many long-short pairs is the symbol for a voltmeter. (a) True (b) False
31. 31.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
32. 32.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a straight line (c) a circle with an X in it (d) many long-short pairs
33. 33.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
34. 34.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a circle with an X in it (c) triangle, bar and arrows (d) a dot where wires meet
35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) LED (d) voltmeter
36. 36.Which drawing is the symbol for a battery? (a) a long and a short line (b) a straight line (c) a circle with a cross (d) many long-short pairs
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) wire (c) junction (d) diode
38. 38.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) switch (c) bulb (d) motor
40. 40.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) capacitor (c) wire (d) diode

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