Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 768 · 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 circle with an X in it is the symbol for a bulb. (a) True (b) False
2. 2.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
3. 3.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
4. 4.Which drawing is the symbol for a diode? (a) a small empty box (b) triangle against a bar (c) two equal parallel lines (d) a circle with an X in it
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
6. 6.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
7. 7.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) capacitor (c) bulb (d) ammeter
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
10. 10.Which drawing is the symbol for a wire? (a) a plain rectangle (b) a circle with A inside (c) a line lifted at a gap (d) a straight line
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) resistor (c) voltmeter (d) capacitor
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
13. 13.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) many long-short pairs (c) a circle with M inside (d) a circle with an X in it
14. 14.True or false: two equal parallel lines is the symbol for a cell. (a) True (b) False
15. 15.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) LED (c) motor (d) diode
17. 17.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a line lifted at a gap (c) a dot where wires meet (d) a plain rectangle
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) junction (c) LED (d) voltmeter
19. 19.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a circle with an X in it (c) a plain rectangle (d) one tall, one short bar
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) voltmeter (c) bulb (d) motor
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) capacitor (c) battery (d) switch
22. 22.True or false: two equal parallel lines is the symbol for a junction. (a) True (b) False
23. 23.True or false: two or more cell symbols is the symbol for an LED. (a) False (b) True
24. 24.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) cell (c) wire (d) battery
26. 26.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
27. 27.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
28. 28.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) two or more cell symbols (c) a straight line (d) a circle with M inside
29. 29.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with M inside (c) a circle with A inside (d) a straight line
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) junction (c) bulb (d) LED
31. 31.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
32. 32.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with A inside (c) a circle with an X in it (d) a plain rectangle
33. 33.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with an X in it (c) a circle with a cross (d) a long and a short line
34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) cell (c) diode (d) battery
35. 35.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle against a bar (c) a long and a short line (d) a plain rectangle
36. 36.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
37. 37.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a circle with V inside (c) two or more cell symbols (d) a dot where wires meet
38. 38.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a long and a short line (c) two equal parallel lines (d) a circle with a cross
39. 39.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
40. 40.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False

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