Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 423 · 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 a line lifted at a gap? (a) switch (b) ammeter (c) wire (d) motor
2. 2.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) junction (c) resistor (d) cell
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
4. 4.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with V inside (c) a plain rectangle (d) triangle, bar and arrows
5. 5.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
6. 6.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) motor (c) bulb (d) switch
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) cell (d) junction
9. 9.✏️ 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
10. 10.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) switch (c) battery (d) motor
12. 12.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a dot where wires meet (c) a plain rectangle (d) a circle with a cross
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) LED (c) wire (d) junction
14. 14.Which drawing is the symbol for an LED? (a) a circle with V inside (b) many long-short pairs (c) a circle with M inside (d) triangle, bar and arrows
15. 15.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
16. 16.Which drawing is the symbol for a junction? (a) a long and a short line (b) a dot where wires meet (c) a circle with A inside (d) triangle against a bar
17. 17.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) two or more cell symbols (c) a circle with an X in it (d) a circle with M inside
18. 18.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a circle with A inside (c) a circle with a cross (d) a plain rectangle
19. 19.True or false: a dot where wires meet is the symbol for a bulb. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) LED (c) motor (d) wire
21. 21.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
22. 22.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) motor (c) junction (d) diode
24. 24.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
25. 25.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a circle with V inside (c) a circle with an X in it (d) a line lifted at a gap
26. 26.Which drawing is the symbol for a capacitor? (a) a straight line (b) two equal parallel lines (c) a dot where wires meet (d) a long and a short line
27. 27.True or false: one tall, one short bar is the symbol for a voltmeter. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) wire (c) bulb (d) capacitor
29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) resistor (c) wire (d) bulb
30. 30.Which drawing is the symbol for an ammeter? (a) a circle with M inside (b) many long-short pairs (c) a circle with A inside (d) two or more cell symbols
31. 31.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) LED (c) diode (d) battery
32. 32.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) resistor (c) ammeter (d) cell
34. 34.Which drawing is the symbol for a bulb? (a) a small empty box (b) a line lifted at a gap (c) one tall, one short bar (d) a circle with an X in it
35. 35.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
36. 36.True or false: a straight line is the symbol for an LED. (a) True (b) False
37. 37.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
38. 38.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
39. 39.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
40. 40.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True

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