Electronics Worksheet: Circuit Symbols

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

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