Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 461 · 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.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a line lifted at a gap (c) one tall, one short bar (d) a circle with an X in it
2. 2.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a circle with A inside (c) a long and a short line (d) a dot where wires meet
3. 3.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) many long-short pairs (c) a circle with M inside (d) two or more cell symbols
4. 4.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
6. 6.True or false: a straight line is the symbol for a diode. (a) False (b) True
7. 7.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
8. 8.Which drawing is the symbol for an LED? (a) a plain rectangle (b) triangle, bar and arrows (c) one tall, one short bar (d) a long and a short line
9. 9.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a dot where wires meet (c) triangle against a bar (d) a circle with A inside
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) junction (c) battery (d) motor
12. 12.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) one tall, one short bar (c) many long-short pairs (d) a plain rectangle
13. 13.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
14. 14.Which drawing is the symbol for a diode? (a) a long and a short line (b) triangle against a bar (c) a small empty box (d) a circle with A inside
15. 15.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) wire (c) cell (d) motor
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) motor (c) junction (d) cell
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) LED (c) voltmeter (d) ammeter
20. 20.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) ammeter (c) bulb (d) switch
21. 21.Which drawing is the symbol for a wire? (a) two equal parallel lines (b) a straight line (c) two or more cell symbols (d) one tall, one short bar
22. 22.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
23. 23.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a plain rectangle (c) a dot where wires meet (d) two or more cell symbols
24. 24.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
25. 25.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) two equal parallel lines (c) a small empty box (d) a circle with V inside
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) cell (c) ammeter (d) voltmeter
27. 27.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) one tall, one short bar (c) triangle, bar and arrows (d) a small empty box
28. 28.True or false: a small empty box is the symbol for a diode. (a) False (b) True
29. 29.True or false: many long-short pairs is the symbol for a resistor. (a) False (b) True
30. 30.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
31. 31.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
32. 32.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) cell (c) LED (d) wire
34. 34.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
35. 35.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a long and a short line (c) triangle, bar and arrows (d) a circle with A inside
36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) battery (c) resistor (d) junction
37. 37.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) capacitor (c) motor (d) LED
39. 39.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) diode (c) wire (d) LED
40. 40.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False

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