Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 997 · 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) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
2. 2.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a circle with M inside (c) two or more cell symbols (d) a straight line
3. 3.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) LED (c) capacitor (d) bulb
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
6. 6.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a small empty box (c) a circle with V inside (d) a circle with a cross
7. 7.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
8. 8.True or false: a straight line is the symbol for a wire. (a) False (b) True
9. 9.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a long and a short line (c) triangle, bar and arrows (d) a dot where wires meet
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) ammeter (c) battery (d) resistor
11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) diode (c) battery (d) cell
12. 12.Which drawing is the symbol for a diode? (a) a circle with M inside (b) triangle, bar and arrows (c) triangle against a bar (d) a line lifted at a gap
13. 13.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a straight line (c) one tall, one short bar (d) a long and a short line
14. 14.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) motor (c) capacitor (d) cell
16. 16.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
17. 17.True or false: two equal parallel lines is the symbol for an ammeter. (a) False (b) True
18. 18.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
19. 19.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
20. 20.True or false: a circle with M inside is the symbol for a cell. (a) False (b) True
21. 21.Which drawing is the symbol for a battery? (a) a circle with a cross (b) two or more cell symbols (c) a long and a short line (d) a plain rectangle
22. 22.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with A inside (c) many long-short pairs (d) two or more cell symbols
23. 23.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) many long-short pairs (c) a circle with a cross (d) a circle with V inside
24. 24.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a plain rectangle (c) a circle with M inside (d) a long and a short line
25. 25.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) motor (c) switch (d) diode
26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) ammeter (c) wire (d) junction
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) battery (c) capacitor (d) voltmeter
28. 28.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) battery (c) cell (d) wire
29. 29.True or false: a long and a short line is the symbol for a diode. (a) False (b) True
30. 30.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
31. 31.Which drawing is the symbol for a junction? (a) a small empty box (b) a long and a short line (c) a dot where wires meet (d) two equal parallel lines
32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) capacitor (c) switch (d) cell
33. 33.True or false: triangle, bar and arrows is the symbol for a junction. (a) False (b) True
34. 34.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
35. 35.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
36. 36.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a straight line (c) two equal parallel lines (d) a circle with an X in it
37. 37.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) battery (c) bulb (d) cell
39. 39.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) voltmeter (c) wire (d) LED
40. 40.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False

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