Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 979 · 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, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
3. 3.Which drawing is the symbol for a diode? (a) triangle against a bar (b) two equal parallel lines (c) a circle with an X in it (d) a circle with M inside
4. 4.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
5. 5.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) motor (c) wire (d) battery
7. 7.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
8. 8.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) True (b) False
9. 9.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) two or more cell symbols (c) a circle with V inside (d) a plain rectangle
10. 10.True or false: a straight line is the symbol for a battery. (a) False (b) True
11. 11.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a circle with a cross (c) many long-short pairs (d) two or more cell symbols
12. 12.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) bulb (c) LED (d) motor
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) resistor (c) voltmeter (d) ammeter
15. 15.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
16. 16.Which drawing is the symbol for a battery? (a) a straight line (b) a long and a short line (c) a small empty box (d) many long-short pairs
17. 17.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) switch (c) resistor (d) junction
18. 18.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) battery (c) switch (d) diode
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) diode (c) capacitor (d) bulb
20. 20.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
21. 21.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with an X in it (c) a circle with A inside (d) two equal parallel lines
22. 22.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) battery (c) ammeter (d) cell
23. 23.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a plain rectangle (c) two or more cell symbols (d) triangle, bar and arrows
24. 24.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a straight line (c) many long-short pairs (d) a circle with A inside
25. 25.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) battery (c) resistor (d) cell
27. 27.Which drawing is the symbol for a cell? (a) a straight line (b) many long-short pairs (c) one tall, one short bar (d) a circle with A inside
28. 28.Which drawing is the symbol for a junction? (a) a plain rectangle (b) a line lifted at a gap (c) a circle with M inside (d) a dot where wires meet
29. 29.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) diode (c) switch (d) capacitor
30. 30.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) cell (c) junction (d) ammeter
32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) battery (c) cell (d) wire
33. 33.True or false: a circle with a cross 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.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
36. 36.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) one tall, one short bar (c) triangle against a bar (d) a straight line
37. 37.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
38. 38.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
39. 39.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) junction (c) LED (d) cell

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