Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 775 · 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.True or false: a circle with A inside is the symbol for a battery. (a) False (b) True
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) switch (c) voltmeter (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.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
5. 5.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a dot where wires meet (c) a plain rectangle (d) a line lifted at a gap
6. 6.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) diode (c) cell (d) battery
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) voltmeter (d) bulb
8. 8.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) bulb (d) diode
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) junction (c) bulb (d) LED
10. 10.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
11. 11.True or false: a circle with a cross is the symbol for a capacitor. (a) True (b) False
12. 12.Which drawing is the symbol for a motor? (a) a circle with M inside (b) two equal parallel lines (c) a dot where wires meet (d) one tall, one short bar
13. 13.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) triangle against a bar (c) many long-short pairs (d) two or more cell symbols
14. 14.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a line lifted at a gap (c) a dot where wires meet (d) two or more cell symbols
15. 15.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False
16. 16.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
17. 17.Which drawing is the symbol for a junction? (a) a circle with M inside (b) a long and a short line (c) a line lifted at a gap (d) a dot where wires meet
18. 18.Which drawing is the symbol for a resistor? (a) a straight line (b) a small empty box (c) a line lifted at a gap (d) many long-short pairs
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) ammeter (c) wire (d) bulb
20. 20.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
21. 21.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
23. 23.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
24. 24.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) one tall, one short bar (c) a long and a short line (d) many long-short pairs
25. 25.True or false: a circle with M inside is the symbol for a capacitor. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) battery (c) diode (d) capacitor
27. 27.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) cell (c) wire (d) motor
28. 28.Which drawing is the symbol for a capacitor? (a) a straight line (b) a long and a short line (c) triangle against a bar (d) two equal parallel lines
29. 29.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
30. 30.True or false: a straight line is the symbol for a junction. (a) True (b) False
31. 31.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
32. 32.Which drawing is the symbol for a diode? (a) a circle with a cross (b) triangle against a bar (c) two or more cell symbols (d) a long and a short line
33. 33.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) wire (c) cell (d) ammeter
34. 34.Which drawing is the symbol for a wire? (a) a straight line (b) two or more cell symbols (c) one tall, one short bar (d) many long-short pairs
35. 35.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
36. 36.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
37. 37.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) many long-short pairs (c) a circle with V inside (d) one tall, one short bar
38. 38.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
39. 39.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True

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