Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 555 · 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 circle with an X in it? (a) resistor (b) wire (c) bulb (d) LED
2. 2.Which drawing is the symbol for a diode? (a) a long and a short line (b) two or more cell symbols (c) triangle against a bar (d) a line lifted at a gap
3. 3.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
4. 4.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
5. 5.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a circle with a cross (c) a long and a short line (d) a dot where wires meet
6. 6.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
7. 7.True or false: a line lifted at a gap is the symbol for a resistor. (a) True (b) False
8. 8.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) motor (c) ammeter (d) cell
10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) motor (c) battery (d) bulb
11. 11.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
12. 12.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
13. 13.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
14. 14.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) junction (c) resistor (d) capacitor
15. 15.Which drawing is the symbol for a capacitor? (a) a line lifted at a gap (b) a circle with V inside (c) two equal parallel lines (d) two or more cell symbols
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
17. 17.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
18. 18.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
19. 19.True or false: two equal parallel lines is the symbol for a wire. (a) True (b) False
20. 20.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
21. 21.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
22. 22.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) two or more cell symbols (c) a circle with an X in it (d) one tall, one short bar
23. 23.Which drawing is the symbol for a switch? (a) a straight line (b) a small empty box (c) a line lifted at a gap (d) two equal parallel lines
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) LED (c) switch (d) bulb
25. 25.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a long and a short line (c) one tall, one short bar (d) a circle with an X in it
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) diode (c) wire (d) voltmeter
27. 27.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) triangle, bar and arrows (c) a circle with A inside (d) a circle with an X in it
28. 28.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) junction (c) capacitor (d) battery
30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) wire (c) voltmeter (d) LED
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) switch (c) capacitor (d) motor
32. 32.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
33. 33.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
34. 34.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) LED (c) cell (d) diode
36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) resistor (c) ammeter (d) junction
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) bulb (c) ammeter (d) battery
38. 38.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) battery (c) ammeter (d) motor
39. 39.Which drawing is the symbol for a wire? (a) a long and a short line (b) a straight line (c) two or more cell symbols (d) a circle with an X in it
40. 40.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False

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