Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 57 · 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.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
2. 2.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) diode (c) cell (d) battery
3. 3.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) bulb (c) diode (d) capacitor
5. 5.Which drawing is the symbol for a switch? (a) a long and a short line (b) a line lifted at a gap (c) one tall, one short bar (d) triangle against a bar
6. 6.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) LED (c) voltmeter (d) resistor
7. 7.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) motor (c) ammeter (d) junction
8. 8.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) wire (c) battery (d) switch
9. 9.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) two or more cell symbols (c) triangle against a bar (d) triangle, bar and arrows
10. 10.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
12. 12.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) motor (c) resistor (d) capacitor
13. 13.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
14. 14.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
15. 15.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a long and a short line (c) two or more cell symbols (d) a plain rectangle
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) bulb (c) junction (d) ammeter
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) voltmeter (c) diode (d) cell
18. 18.True or false: triangle, bar and arrows is the symbol for a junction. (a) True (b) False
19. 19.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a small empty box (c) many long-short pairs (d) a dot where wires meet
20. 20.Which drawing is the symbol for a resistor? (a) a small empty box (b) a line lifted at a gap (c) triangle, bar and arrows (d) a straight line
21. 21.True or false: a circle with V inside is the symbol for a wire. (a) True (b) False
22. 22.Which drawing is the symbol for a capacitor? (a) a straight line (b) two equal parallel lines (c) a circle with V inside (d) many long-short pairs
23. 23.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
24. 24.True or false: a dot where wires meet is the symbol for a motor. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) motor (c) voltmeter (d) cell
26. 26.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
27. 27.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with an X in it (c) triangle against a bar (d) many long-short pairs
28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) cell (c) bulb (d) voltmeter
29. 29.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with M inside (c) a small empty box (d) a plain rectangle
30. 30.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a circle with M inside (c) a circle with a cross (d) a circle with A inside
31. 31.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
32. 32.True or false: a circle with an X in it is the symbol for a switch. (a) False (b) True
33. 33.True or false: one tall, one short bar is the symbol for a capacitor. (a) False (b) True
34. 34.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) bulb (c) resistor (d) cell
36. 36.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a line lifted at a gap (c) two equal parallel lines (d) a circle with an X in it
37. 37.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) ammeter (c) switch (d) motor
38. 38.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True
39. 39.True or false: a line lifted at a gap is the symbol for a cell. (a) False (b) True
40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False

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