Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 425 · 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.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a small empty box (c) a line lifted at a gap (d) a plain rectangle
2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) battery (c) junction (d) bulb
3. 3.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a straight line (c) two or more cell symbols (d) a small empty box
4. 4.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) voltmeter (c) battery (d) bulb
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) motor (c) junction (d) bulb
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) switch (c) wire (d) battery
9. 9.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) diode (c) battery (d) cell
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) capacitor (c) cell (d) voltmeter
11. 11.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
12. 12.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) capacitor (c) resistor (d) cell
14. 14.True or false: two equal parallel lines is the symbol for a battery. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) junction (c) LED (d) capacitor
16. 16.True or false: a long and a short line is the symbol for a switch. (a) False (b) True
17. 17.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) wire (c) bulb (d) diode
19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) capacitor (c) bulb (d) LED
20. 20.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
21. 21.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
22. 22.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with A inside (c) a line lifted at a gap (d) many long-short pairs
23. 23.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
24. 24.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) triangle against a bar (c) many long-short pairs (d) a dot where wires meet
25. 25.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a circle with V inside (c) two or more cell symbols (d) two equal parallel lines
26. 26.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) a dot where wires meet (c) many long-short pairs (d) two equal parallel lines
27. 27.True or false: a plain rectangle is the symbol for a wire. (a) False (b) True
28. 28.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
29. 29.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
30. 30.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a long and a short line (c) a circle with M inside (d) a line lifted at a gap
31. 31.True or false: a small empty box is the symbol for a battery. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) capacitor (c) cell (d) resistor
33. 33.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) diode (c) motor (d) ammeter
34. 34.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a circle with A inside (c) a line lifted at a gap (d) a circle with an X in it
35. 35.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) triangle, bar and arrows (c) a dot where wires meet (d) a small empty box
36. 36.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) LED (c) junction (d) capacitor
38. 38.True or false: a dot where wires meet is the symbol for a motor. (a) False (b) True
39. 39.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
40. 40.Which drawing is the symbol for a wire? (a) a plain rectangle (b) two or more cell symbols (c) a circle with V inside (d) a straight line

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