Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 737 · 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 cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
3. 3.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) a circle with an X in it (d) a dot where wires meet
4. 4.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
5. 5.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with an X in it (c) one tall, one short bar (d) two equal parallel lines
6. 6.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) motor (c) wire (d) bulb
8. 8.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
9. 9.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) switch (c) cell (d) capacitor
10. 10.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) a straight line (c) many long-short pairs (d) a small empty box
11. 11.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a circle with V inside (c) two equal parallel lines (d) many long-short pairs
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) switch (c) diode (d) bulb
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) switch (c) capacitor (d) ammeter
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) capacitor (c) battery (d) junction
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
16. 16.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) diode (c) ammeter (d) voltmeter
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) battery (c) voltmeter (d) cell
18. 18.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
19. 19.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
20. 20.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a dot where wires meet (c) a long and a short line (d) a circle with A inside
21. 21.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
22. 22.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a plain rectangle (c) a dot where wires meet (d) a straight line
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) ammeter (c) cell (d) LED
24. 24.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a straight line (c) many long-short pairs (d) a circle with an X in it
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) LED (c) bulb (d) cell
26. 26.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) two equal parallel lines (c) triangle, bar and arrows (d) triangle against a bar
27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) bulb (c) LED (d) resistor
28. 28.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) battery (c) capacitor (d) diode
29. 29.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle against a bar (c) a dot where wires meet (d) one tall, one short bar
30. 30.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) switch (c) cell (d) voltmeter
31. 31.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
32. 32.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
33. 33.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) triangle against a bar (c) a line lifted at a gap (d) one tall, one short bar
34. 34.Which drawing is the symbol for an LED? (a) a circle with M inside (b) a circle with a cross (c) two or more cell symbols (d) triangle, bar and arrows
35. 35.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) cell (c) battery (d) motor
37. 37.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) resistor (c) motor (d) switch
38. 38.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
39. 39.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) switch (c) bulb (d) ammeter

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