Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 458 · 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 longer line (b) both lines (c) the shorter line (d) neither line
2. 2.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a line lifted at a gap (c) triangle against a bar (d) many long-short pairs
3. 3.True or false: a small empty box is the symbol for a wire. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) voltmeter (c) battery (d) cell
5. 5.Which drawing is the symbol for a capacitor? (a) a straight line (b) a line lifted at a gap (c) two equal parallel lines (d) a circle with M inside
6. 6.Which drawing is the symbol for a cell? (a) a long and a short line (b) a small empty box (c) a line lifted at a gap (d) a circle with V inside
7. 7.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a dot where wires meet (c) a plain rectangle (d) a circle with a cross
8. 8.True or false: a line lifted at a gap is the symbol for a diode. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) voltmeter (b) switch (c) bulb (d) wire
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) ammeter (c) capacitor (d) motor
11. 11.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a circle with V inside (c) a straight line (d) a long and a short line
12. 12.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a long and a short line (c) a dot where wires meet (d) a circle with a cross
13. 13.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) many long-short pairs (c) a small empty box (d) two equal parallel lines
14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) junction (c) battery (d) ammeter
15. 15.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) wire (c) bulb (d) diode
17. 17.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
18. 18.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a circle with V inside (c) a line lifted at a gap (d) many long-short pairs
19. 19.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) many long-short pairs (c) a circle with A inside (d) a dot where wires meet
20. 20.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a long and a short line (c) triangle against a bar (d) a dot where wires meet
21. 21.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a dot where wires meet (c) a circle with V inside (d) a circle with M inside
22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) battery (d) resistor
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) LED (c) diode (d) wire
25. 25.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) battery (c) ammeter (d) switch
26. 26.True or false: a straight line is the symbol for a battery. (a) False (b) True
27. 27.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
28. 28.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a circle with M inside (c) a dot where wires meet (d) a circle with V inside
29. 29.True or false: a plain rectangle is the symbol for a bulb. (a) False (b) True
30. 30.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) wire (c) junction (d) ammeter
32. 32.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
33. 33.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
34. 34.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a small empty box (c) a circle with a cross (d) a circle with A inside
35. 35.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) switch (c) capacitor (d) diode
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) wire (c) cell (d) battery
37. 37.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) diode (c) capacitor (d) junction
39. 39.True or false: a plain rectangle is the symbol for a cell. (a) False (b) True
40. 40.True or false: a long and a short line is the symbol for a battery. (a) False (b) True

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