Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 388 · 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 make it colourful (c) symbols are heavier (d) to hide the circuit
2. 2.True or false: a plain rectangle is the symbol for a switch. (a) False (b) True
3. 3.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
4. 4.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with M inside (c) a circle with an X in it (d) one tall, one short bar
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
6. 6.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) LED (c) battery (d) diode
7. 7.True or false: a circle with M inside is the symbol for a wire. (a) False (b) True
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
9. 9.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) junction (c) cell (d) resistor
10. 10.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
11. 11.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) a circle with V inside (c) a circle with a cross (d) triangle, bar and arrows
12. 12.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a circle with V inside (c) a circle with M inside (d) a straight line
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) resistor (c) switch (d) junction
14. 14.True or false: a plain rectangle is the symbol for a battery. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) battery (c) wire (d) switch
16. 16.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
17. 17.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a circle with a cross (c) a circle with M inside (d) one tall, one short bar
18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) bulb (d) capacitor
19. 19.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a long and a short line (c) a circle with a cross (d) a dot where wires meet
20. 20.True or false: a dot where wires meet is the symbol for a wire. (a) True (b) False
21. 21.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) two or more cell symbols (c) a straight line (d) a circle with M inside
22. 22.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) a straight line (c) a long and a short line (d) a plain rectangle
23. 23.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) bulb (c) capacitor (d) switch
24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) battery (c) capacitor (d) LED
25. 25.True or false: many long-short pairs is the symbol for an LED. (a) True (b) False
26. 26.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
27. 27.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) a dot where wires meet (c) a circle with M inside (d) a straight line
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) capacitor (c) battery (d) motor
29. 29.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) many long-short pairs (c) a long and a short line (d) a circle with an X in it
30. 30.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) voltmeter (c) bulb (d) ammeter
32. 32.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
33. 33.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a long and a short line (c) a circle with A inside (d) a circle with an X in it
34. 34.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
35. 35.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) triangle, bar and arrows (c) a line lifted at a gap (d) one tall, one short bar
36. 36.Which drawing is the symbol for a cell? (a) triangle against a bar (b) triangle, bar and arrows (c) a long and a short line (d) a small empty box
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) junction (c) motor (d) bulb
38. 38.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) cell (c) bulb (d) resistor
39. 39.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
40. 40.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) many long-short pairs (c) a circle with A inside (d) two equal parallel lines

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