Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 993 · 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, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
4. 4.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a small empty box (c) a circle with a cross (d) a long and a short line
5. 5.True or false: a straight line is the symbol for a battery. (a) False (b) True
6. 6.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with A inside (c) many long-short pairs (d) a line lifted at a gap
7. 7.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a circle with an X in it (c) a line lifted at a gap (d) a long and a short line
8. 8.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) resistor (b) battery (c) cell (d) diode
9. 9.Which drawing is the symbol for a bulb? (a) a long and a short line (b) one tall, one short bar (c) a plain rectangle (d) a circle with an X in it
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) ammeter (c) battery (d) wire
11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) junction (c) LED (d) switch
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) wire (c) ammeter (d) junction
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) capacitor (c) motor (d) voltmeter
14. 14.Which drawing is the symbol for an LED? (a) a circle with a cross (b) triangle against a bar (c) triangle, bar and arrows (d) many long-short pairs
15. 15.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a small empty box (c) a long and a short line (d) two equal parallel lines
16. 16.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) diode (c) bulb (d) voltmeter
18. 18.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
19. 19.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) a circle with an X in it (c) two or more cell symbols (d) a plain rectangle
20. 20.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) wire (c) bulb (d) resistor
21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) LED (c) bulb (d) junction
22. 22.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) cell (c) bulb (d) ammeter
24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) cell (c) LED (d) motor
25. 25.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a straight line (c) a circle with an X in it (d) two equal parallel lines
26. 26.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with V inside (c) a circle with M inside (d) a small empty box
27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) diode (c) LED (d) junction
28. 28.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
29. 29.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with a cross (c) two equal parallel lines (d) a line lifted at a gap
30. 30.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a plain rectangle (c) two or more cell symbols (d) many long-short pairs
31. 31.True or false: a circle with M inside is the symbol for a cell. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) battery (c) diode (d) capacitor
33. 33.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
34. 34.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
35. 35.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
36. 36.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
37. 37.True or false: a circle with V inside is the symbol for a junction. (a) False (b) True
38. 38.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
39. 39.True or false: two equal parallel lines is the symbol for a battery. (a) True (b) False
40. 40.True or false: a straight line is the symbol for a bulb. (a) True (b) False

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