Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 502 · 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 wire? (a) a small empty box (b) many long-short pairs (c) a circle with an X in it (d) a straight line
2. 2.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with A inside (c) a dot where wires meet (d) a long and a short line
3. 3.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a dot where wires meet (c) a circle with V inside (d) many long-short pairs
4. 4.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a plain rectangle (c) a circle with an X in it (d) a small empty box
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
6. 6.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a line lifted at a gap (c) a circle with M inside (d) a small empty box
7. 7.✏️ 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
8. 8.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) resistor (c) battery (d) ammeter
10. 10.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) capacitor (c) LED (d) resistor
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) voltmeter (c) cell (d) bulb
13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) junction (d) cell
14. 14.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with M inside (c) a line lifted at a gap (d) a circle with an X in it
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) capacitor (c) cell (d) voltmeter
16. 16.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a long and a short line (c) a circle with M inside (d) a dot where wires meet
17. 17.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a circle with an X in it (c) a plain rectangle (d) a circle with M inside
18. 18.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
19. 19.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a small empty box (c) a plain rectangle (d) a circle with V inside
20. 20.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) switch (d) ammeter
22. 22.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
23. 23.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with V inside (c) two or more cell symbols (d) triangle, bar and arrows
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) ammeter (c) bulb (d) motor
25. 25.True or false: two equal parallel lines is the symbol for a diode. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) bulb (c) diode (d) battery
27. 27.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) triangle, bar and arrows (c) a circle with a cross (d) a circle with M inside
28. 28.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) junction (c) wire (d) voltmeter
30. 30.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) bulb (c) switch (d) junction
31. 31.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
32. 32.True or false: a small empty box is the symbol for a switch. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) wire (d) bulb
34. 34.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a long and a short line (c) a circle with V inside (d) a dot where wires meet
35. 35.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
36. 36.Which drawing is the symbol for a resistor? (a) a straight line (b) a line lifted at a gap (c) one tall, one short bar (d) a small empty box
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) motor (c) diode (d) battery
38. 38.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) cell (c) capacitor (d) voltmeter
40. 40.Which drawing is the symbol for a junction? (a) a straight line (b) triangle, bar and arrows (c) a dot where wires meet (d) a long and a short line

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