Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 889 · 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.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with M inside (c) a circle with V inside (d) a dot where wires meet
2. 2.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) wire (c) bulb (d) junction
4. 4.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) junction (c) resistor (d) motor
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) voltmeter (c) resistor (d) capacitor
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) battery (c) diode (d) cell
7. 7.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) one tall, one short bar (c) triangle against a bar (d) triangle, bar and arrows
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
9. 9.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True
10. 10.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
11. 11.True or false: triangle, bar and arrows is the symbol for a battery. (a) False (b) True
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
13. 13.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a circle with a cross (c) a long and a short line (d) a circle with V inside
14. 14.Which drawing is the symbol for a diode? (a) a plain rectangle (b) triangle against a bar (c) a long and a short line (d) a circle with M inside
15. 15.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
16. 16.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) two or more cell symbols (c) a circle with A inside (d) a circle with M inside
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) switch (c) cell (d) battery
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) ammeter (c) cell (d) bulb
19. 19.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) LED (c) capacitor (d) cell
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) junction (c) bulb (d) battery
21. 21.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
22. 22.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
23. 23.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) a small empty box (c) two or more cell symbols (d) a dot where wires meet
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) switch (c) junction (d) wire
25. 25.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) two equal parallel lines (c) a circle with a cross (d) triangle against a bar
26. 26.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a circle with M inside (c) two equal parallel lines (d) a line lifted at a gap
27. 27.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
28. 28.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) capacitor (c) wire (d) motor
30. 30.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
31. 31.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) cell (c) capacitor (d) switch
33. 33.Which drawing is the symbol for a motor? (a) a straight line (b) two or more cell symbols (c) a circle with M inside (d) a dot where wires meet
34. 34.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
35. 35.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
36. 36.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) LED (c) wire (d) cell
38. 38.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) voltmeter (c) LED (d) diode
39. 39.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) many long-short pairs (c) a long and a short line (d) a circle with V inside
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) battery (c) bulb (d) LED

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