Electronics Worksheet: Circuit Symbols

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

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