Electronics Worksheet: Circuit Symbols

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

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