Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 450 · 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 straight line is the symbol for a wire. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) capacitor (c) wire (d) junction
3. 3.✏️ 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
4. 4.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a line lifted at a gap (c) a small empty box (d) a circle with M inside
5. 5.True or false: a plain rectangle is the symbol for a capacitor. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) cell (c) voltmeter (d) bulb
7. 7.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
8. 8.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a circle with a cross (c) a circle with A inside (d) a circle with V inside
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) motor (c) bulb (d) battery
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) capacitor (c) motor (d) cell
11. 11.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) two equal parallel lines (c) many long-short pairs (d) a small empty box
12. 12.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
14. 14.Which drawing is the symbol for a motor? (a) a circle with M inside (b) one tall, one short bar (c) a circle with V inside (d) two or more cell symbols
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) switch (c) diode (d) motor
17. 17.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) diode (c) switch (d) LED
19. 19.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) triangle, bar and arrows (c) a circle with M inside (d) triangle against a bar
20. 20.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
21. 21.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) wire (d) switch
23. 23.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
24. 24.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
25. 25.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) capacitor (c) junction (d) bulb
27. 27.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) cell (c) capacitor (d) voltmeter
28. 28.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) switch (c) resistor (d) wire
29. 29.True or false: a plain rectangle is the symbol for an ammeter. (a) False (b) True
30. 30.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) True (b) False
31. 31.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with a cross (c) a circle with an X in it (d) two or more cell symbols
32. 32.True or false: a circle with a cross is the symbol for a motor. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) resistor (c) capacitor (d) diode
34. 34.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) battery (c) capacitor (d) resistor
35. 35.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
36. 36.Which drawing is the symbol for a junction? (a) a straight line (b) two or more cell symbols (c) a dot where wires meet (d) a line lifted at a gap
37. 37.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a small empty box (c) two equal parallel lines (d) a circle with an X in it
38. 38.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a long and a short line (c) a circle with an X in it (d) a circle with a cross
39. 39.Which drawing is the symbol for a diode? (a) a long and a short line (b) triangle against a bar (c) a circle with A inside (d) a dot where wires meet
40. 40.True or false: a small empty box is the symbol for a resistor. (a) True (b) False

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