Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 628 · 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 switch? (a) two or more cell symbols (b) a circle with an X in it (c) a line lifted at a gap (d) a small empty box
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
5. 5.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) switch (c) capacitor (d) battery
6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) voltmeter (c) bulb (d) LED
7. 7.Which drawing is the symbol for a resistor? (a) a straight line (b) a circle with M inside (c) a small empty box (d) a dot where wires meet
8. 8.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) one tall, one short bar (c) a plain rectangle (d) a circle with V inside
9. 9.Which drawing is the symbol for an LED? (a) many long-short pairs (b) one tall, one short bar (c) triangle, bar and arrows (d) two equal parallel lines
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) battery (c) ammeter (d) resistor
11. 11.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
12. 12.True or false: a circle with a cross is the symbol for a motor. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) resistor (c) battery (d) bulb
14. 14.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) junction (c) voltmeter (d) bulb
16. 16.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) cell (c) wire (d) diode
17. 17.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
18. 18.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
19. 19.True or false: two equal parallel lines is the symbol for a wire. (a) True (b) False
20. 20.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) battery (c) voltmeter (d) bulb
22. 22.Which drawing is the symbol for a wire? (a) a circle with M inside (b) triangle, bar and arrows (c) a straight line (d) a long and a short line
23. 23.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a long and a short line (c) one tall, one short bar (d) many long-short pairs
24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
25. 25.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with a cross (c) a circle with M inside (d) a circle with A inside
26. 26.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) a circle with A inside (d) a circle with a cross
27. 27.Which drawing is the symbol for a diode? (a) a long and a short line (b) a small empty box (c) triangle against a bar (d) one tall, one short bar
28. 28.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) one tall, one short bar (c) a circle with a cross (d) a dot where wires meet
29. 29.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) battery (c) bulb (d) voltmeter
31. 31.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) two or more cell symbols (c) a plain rectangle (d) a dot where wires meet
32. 32.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
33. 33.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) motor (c) cell (d) LED
35. 35.Which drawing is the symbol for a junction? (a) a plain rectangle (b) a circle with M inside (c) a dot where wires meet (d) a circle with V inside
36. 36.Which drawing is the symbol for a cell? (a) a circle with a cross (b) two or more cell symbols (c) a long and a short line (d) a straight line
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) bulb (c) capacitor (d) resistor
38. 38.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a dot where wires meet (c) a circle with M inside (d) two or more cell symbols
39. 39.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
40. 40.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False

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