Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 271 · 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 long and a short line is the symbol for a junction. (a) True (b) False
2. 2.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
3. 3.Which drawing is the symbol for a wire? (a) a straight line (b) one tall, one short bar (c) a long and a short line (d) a circle with an X in it
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) cell (c) voltmeter (d) switch
5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) junction (c) wire (d) LED
6. 6.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) triangle against a bar (c) a dot where wires meet (d) many long-short pairs
7. 7.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
8. 8.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) voltmeter (c) switch (d) battery
10. 10.Which drawing is the symbol for an LED? (a) a straight line (b) a long and a short line (c) triangle, bar and arrows (d) one tall, one short bar
11. 11.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) ammeter (c) cell (d) capacitor
13. 13.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) resistor (c) diode (d) junction
14. 14.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) triangle, bar and arrows (d) a straight line
15. 15.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
16. 16.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) ammeter (c) LED (d) junction
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
19. 19.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) voltmeter (c) switch (d) wire
21. 21.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) one tall, one short bar (c) a circle with V inside (d) two equal parallel lines
22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) switch (c) cell (d) ammeter
23. 23.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
24. 24.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a circle with A inside (c) triangle, bar and arrows (d) triangle against a bar
25. 25.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
26. 26.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False
27. 27.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) resistor (c) capacitor (d) wire
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) switch (c) bulb (d) battery
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) motor (c) battery (d) resistor
31. 31.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a circle with a cross (c) a dot where wires meet (d) a circle with M inside
32. 32.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
33. 33.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with M inside (c) a straight line (d) a line lifted at a gap
34. 34.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) cell (c) motor (d) LED
35. 35.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with an X in it (c) one tall, one short bar (d) a circle with A inside
36. 36.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) triangle, bar and arrows (c) many long-short pairs (d) a small empty box
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) bulb (c) ammeter (d) wire
38. 38.True or false: a straight line is the symbol for a cell. (a) True (b) False
39. 39.True or false: a circle with an X in it is the symbol for an LED. (a) True (b) False
40. 40.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True

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