Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 182 · 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 small empty box? (a) motor (b) resistor (c) battery (d) cell
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
4. 4.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
5. 5.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) battery (c) motor (d) wire
7. 7.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a line lifted at a gap (c) many long-short pairs (d) a straight line
8. 8.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
9. 9.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) ammeter (c) wire (d) resistor
11. 11.True or false: a circle with an X in it is the symbol for a diode. (a) False (b) True
12. 12.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
13. 13.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) triangle against a bar (c) a circle with V inside (d) many long-short pairs
14. 14.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) switch (c) diode (d) bulb
16. 16.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) one tall, one short bar (c) a plain rectangle (d) two equal parallel lines
17. 17.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) voltmeter (c) capacitor (d) battery
19. 19.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) junction (c) bulb (d) LED
21. 21.True or false: triangle against a bar is the symbol for a capacitor. (a) False (b) True
22. 22.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) a long and a short line (c) a circle with a cross (d) triangle against a bar
23. 23.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) one tall, one short bar (c) two or more cell symbols (d) a small empty box
24. 24.True or false: two equal parallel lines is the symbol for a motor. (a) True (b) False
25. 25.True or false: a circle with A inside is the symbol for a switch. (a) False (b) True
26. 26.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a circle with M inside (c) a long and a short line (d) a dot where wires meet
27. 27.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
28. 28.Which drawing is the symbol for a battery? (a) a long and a short line (b) two or more cell symbols (c) a circle with an X in it (d) two equal parallel lines
29. 29.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
30. 30.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) a straight line (c) a plain rectangle (d) triangle against a bar
31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) junction (c) battery (d) switch
32. 32.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
33. 33.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) bulb (c) battery (d) voltmeter
35. 35.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) wire (d) switch
36. 36.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
37. 37.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
38. 38.Which drawing is the symbol for a battery? (a) a plain rectangle (b) many long-short pairs (c) a circle with a cross (d) a straight line
39. 39.Which drawing is the symbol for an LED? (a) a circle with M inside (b) two equal parallel lines (c) triangle, bar and arrows (d) one tall, one short bar
40. 40.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) battery (c) capacitor (d) diode

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