Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 69 · 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, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) battery (d) bulb
2. 2.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) capacitor (c) battery (d) voltmeter
3. 3.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a small empty box (c) a line lifted at a gap (d) a dot where wires meet
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) wire (c) battery (d) switch
5. 5.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
7. 7.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) battery (c) junction (d) resistor
8. 8.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a circle with an X in it (c) a long and a short line (d) many long-short pairs
9. 9.Which drawing is the symbol for an LED? (a) a long and a short line (b) a circle with an X in it (c) two or more cell symbols (d) triangle, bar and arrows
10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) resistor (c) cell (d) junction
11. 11.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a circle with M inside (c) triangle against a bar (d) two or more cell symbols
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) cell (c) wire (d) switch
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
14. 14.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a straight line (c) a line lifted at a gap (d) a long and a short line
15. 15.True or false: a circle with an X in it is the symbol for an ammeter. (a) False (b) True
16. 16.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a straight line (c) a circle with V inside (d) a circle with a cross
17. 17.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
18. 18.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
19. 19.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
20. 20.Which drawing is the symbol for a diode? (a) a circle with a cross (b) triangle, bar and arrows (c) a circle with an X in it (d) triangle against a bar
21. 21.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
22. 22.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a circle with M inside (c) one tall, one short bar (d) a straight line
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 a circle with a cross? (a) bulb (b) wire (c) junction (d) voltmeter
25. 25.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) motor (c) resistor (d) switch
26. 26.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) diode (c) wire (d) LED
28. 28.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) triangle, bar and arrows (c) a small empty box (d) a straight line
29. 29.Which drawing is the symbol for a wire? (a) a circle with A inside (b) two or more cell symbols (c) a circle with a cross (d) a straight line
30. 30.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
31. 31.Which drawing is the symbol for a cell? (a) a long and a short line (b) a plain rectangle (c) a circle with V inside (d) a dot where wires meet
32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) diode (c) wire (d) junction
33. 33.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
34. 34.Which drawing is the symbol for a battery? (a) a long and a short line (b) a line lifted at a gap (c) two or more cell symbols (d) a straight line
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) LED (c) motor (d) diode
36. 36.True or false: a circle with V inside is the symbol for a wire. (a) True (b) False
37. 37.True or false: a circle with A inside is the symbol for a resistor. (a) False (b) True
38. 38.True or false: a dot where wires meet is the symbol for an ammeter. (a) True (b) False
39. 39.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
40. 40.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False

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