Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 99 · 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 battery? (a) two or more cell symbols (b) a circle with V inside (c) a dot where wires meet (d) a straight line
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) motor (c) diode (d) voltmeter
4. 4.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
5. 5.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
6. 6.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
7. 7.Which drawing is the symbol for a battery? (a) a straight line (b) a circle with V inside (c) many long-short pairs (d) a circle with an X in it
8. 8.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) diode (c) LED (d) bulb
9. 9.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) cell (d) diode
11. 11.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) two or more cell symbols (c) a dot where wires meet (d) a straight line
12. 12.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) battery (c) capacitor (d) diode
14. 14.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a circle with an X in it (c) a circle with M inside (d) one tall, one short bar
15. 15.Which drawing is the symbol for a junction? (a) many long-short pairs (b) triangle, bar and arrows (c) a dot where wires meet (d) two equal parallel lines
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) junction (c) bulb (d) battery
17. 17.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) cell (c) battery (d) switch
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
19. 19.Which drawing is the symbol for a bulb? (a) a straight line (b) triangle against a bar (c) two equal parallel lines (d) a circle with an X in it
20. 20.True or false: a line lifted at a gap is the symbol for a junction. (a) True (b) False
21. 21.Which drawing is the symbol for a switch? (a) a long and a short line (b) a plain rectangle (c) triangle against a bar (d) a line lifted at a gap
22. 22.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
23. 23.True or false: a circle with A inside is the symbol for a battery. (a) False (b) True
24. 24.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
25. 25.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
26. 26.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
27. 27.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a plain rectangle (c) triangle, bar and arrows (d) a line lifted at a gap
28. 28.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with A inside (c) a circle with M inside (d) two equal parallel lines
29. 29.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) resistor (c) wire (d) diode
30. 30.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
31. 31.True or false: a line lifted at a gap is the symbol for an LED. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) battery (d) resistor
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) battery (c) bulb (d) motor
34. 34.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
35. 35.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) capacitor (c) bulb (d) wire
37. 37.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
38. 38.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a circle with V inside (c) a circle with M inside (d) a long and a short line
39. 39.Which drawing is the symbol for a diode? (a) a long and a short line (b) triangle against a bar (c) two or more cell symbols (d) a circle with M inside
40. 40.True or false: a small empty box is the symbol for a junction. (a) True (b) False

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