Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 673 · 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 cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
2. 2.Which drawing is the symbol for a switch? (a) a circle with a cross (b) two equal parallel lines (c) a line lifted at a gap (d) a circle with A inside
3. 3.Which drawing is the symbol for a diode? (a) a circle with A inside (b) a dot where wires meet (c) triangle against a bar (d) a long and a short line
4. 4.Which drawing is the symbol for a wire? (a) a straight line (b) two or more cell symbols (c) a circle with M inside (d) triangle, bar and arrows
5. 5.Which drawing is the symbol for a resistor? (a) a straight line (b) a small empty box (c) a dot where wires meet (d) a circle with an X in it
6. 6.True or false: a line lifted at a gap is the symbol for a diode. (a) True (b) False
7. 7.Which drawing is the symbol for a cell? (a) a long and a short line (b) two equal parallel lines (c) triangle, bar and arrows (d) two or more cell symbols
8. 8.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) switch (c) ammeter (d) motor
9. 9.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
10. 10.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a long and a short line (c) a small empty box (d) a circle with a cross
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) bulb (c) wire (d) voltmeter
12. 12.True or false: two equal parallel lines is the symbol for an LED. (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 circle with A inside? (a) ammeter (b) bulb (c) diode (d) junction
15. 15.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
16. 16.True or false: a plain rectangle is the symbol for a voltmeter. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) wire (c) diode (d) resistor
18. 18.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
19. 19.Which drawing is the symbol for an LED? (a) a plain rectangle (b) triangle, bar and arrows (c) many long-short pairs (d) triangle against a bar
20. 20.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) diode (c) cell (d) motor
22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) cell (c) capacitor (d) diode
23. 23.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) many long-short pairs (c) a circle with M inside (d) a small empty box
24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) bulb (c) switch (d) motor
25. 25.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) bulb (c) wire (d) capacitor
27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) junction (c) LED (d) cell
28. 28.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) voltmeter (c) motor (d) wire
29. 29.True or false: a circle with M inside is the symbol for a capacitor. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) battery (c) diode (d) motor
31. 31.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a plain rectangle (c) a circle with a cross (d) a line lifted at a gap
32. 32.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
33. 33.True or false: a circle with a cross is the symbol for a battery. (a) False (b) True
34. 34.Which drawing is the symbol for a battery? (a) a circle with V inside (b) two or more cell symbols (c) two equal parallel lines (d) triangle against a bar
35. 35.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
36. 36.True or false: a circle with M inside is the symbol for a battery. (a) True (b) False
37. 37.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
38. 38.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) triangle against a bar (c) a dot where wires meet (d) a long and a short line
39. 39.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) wire (d) battery

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