Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 149 · 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 junction? (a) a small empty box (b) a dot where wires meet (c) one tall, one short bar (d) a circle with V inside
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) junction (c) resistor (d) voltmeter
3. 3.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) resistor (c) cell (d) junction
4. 4.True or false: a small empty box is the symbol for a battery. (a) True (b) False
5. 5.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
6. 6.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) a circle with A inside (c) a dot where wires meet (d) one tall, one short bar
7. 7.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
8. 8.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) a straight line (c) two or more cell symbols (d) one tall, one short bar
9. 9.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) a plain rectangle (d) a dot where wires meet
10. 10.True or false: a straight line is the symbol for a motor. (a) False (b) True
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
12. 12.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a plain rectangle (c) a dot where wires meet (d) triangle, bar and arrows
13. 13.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) bulb (c) cell (d) ammeter
15. 15.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) capacitor (c) LED (d) cell
16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) capacitor (c) battery (d) motor
17. 17.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
18. 18.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
19. 19.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) triangle against a bar (c) a circle with an X in it (d) a long and a short line
20. 20.True or false: a small empty box is the symbol for a wire. (a) False (b) True
21. 21.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) many long-short pairs (d) two or more cell symbols
22. 22.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) capacitor (c) diode (d) cell
23. 23.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) resistor (c) capacitor (d) cell
25. 25.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
26. 26.Which drawing is the symbol for a wire? (a) a straight line (b) two or more cell symbols (c) a circle with an X in it (d) a long and a short line
27. 27.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a line lifted at a gap (c) a circle with V inside (d) a circle with M inside
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) capacitor (c) motor (d) voltmeter
29. 29.Which drawing is the symbol for a diode? (a) a long and a short line (b) triangle against a bar (c) many long-short pairs (d) a circle with V inside
30. 30.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) capacitor (c) ammeter (d) motor
32. 32.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) switch (c) bulb (d) resistor
34. 34.True or false: triangle, bar and arrows is the symbol for a diode. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) cell (c) LED (d) ammeter
36. 36.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) two or more cell symbols (c) triangle, bar and arrows (d) a circle with a cross
37. 37.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) one tall, one short bar (c) a dot where wires meet (d) a circle with an X in it
38. 38.True or false: a plain rectangle is the symbol for a junction. (a) False (b) True
39. 39.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
40. 40.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True

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