Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 84 · 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 long and a short line? (a) resistor (b) bulb (c) diode (d) cell
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
3. 3.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with V inside (c) triangle against a bar (d) a small empty box
4. 4.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) junction (c) diode (d) bulb
6. 6.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
7. 7.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) two equal parallel lines (c) a circle with V inside (d) many long-short pairs
8. 8.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) a small empty box (c) two equal parallel lines (d) many long-short pairs
9. 9.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) motor (d) bulb
10. 10.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
11. 11.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) triangle, bar and arrows (c) two or more cell symbols (d) many long-short pairs
12. 12.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) a circle with M inside (c) triangle against a bar (d) a circle with a cross
13. 13.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
14. 14.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) capacitor (c) battery (d) LED
16. 16.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
17. 17.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) triangle against a bar (c) two or more cell symbols (d) a plain rectangle
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) wire (c) bulb (d) resistor
19. 19.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
20. 20.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a straight line (c) a plain rectangle (d) many long-short pairs
21. 21.Which drawing is the symbol for a switch? (a) a small empty box (b) a line lifted at a gap (c) a dot where wires meet (d) a plain rectangle
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) bulb (c) cell (d) resistor
23. 23.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
24. 24.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
25. 25.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
26. 26.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) LED (c) wire (d) resistor
27. 27.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) LED (c) battery (d) junction
28. 28.True or false: a circle with a cross is the symbol for a battery. (a) False (b) True
29. 29.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) motor (c) ammeter (d) bulb
31. 31.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) triangle, bar and arrows (c) a circle with an X in it (d) many long-short pairs
32. 32.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
33. 33.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) junction (c) LED (d) resistor
35. 35.True or false: a circle with V inside is the symbol for an ammeter. (a) True (b) False
36. 36.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
37. 37.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) junction (c) motor (d) cell
39. 39.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
40. 40.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a circle with an X in it (c) many long-short pairs (d) a line lifted at a gap

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