Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 295 · 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: triangle against a bar is the symbol for a junction. (a) True (b) False
2. 2.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
3. 3.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) motor (c) capacitor (d) wire
4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) LED (c) diode (d) battery
5. 5.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
6. 6.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with A inside (c) triangle against a bar (d) a circle with M inside
7. 7.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
8. 8.True or false: a straight line is the symbol for a wire. (a) True (b) False
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
11. 11.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
12. 12.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) battery (c) bulb (d) wire
14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) switch (c) bulb (d) battery
15. 15.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a small empty box (c) a circle with M inside (d) a circle with a cross
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) bulb (c) resistor (d) motor
17. 17.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) battery (c) diode (d) voltmeter
18. 18.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
19. 19.Which drawing is the symbol for a diode? (a) a circle with A inside (b) two or more cell symbols (c) one tall, one short bar (d) triangle against a bar
20. 20.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with a cross (c) a plain rectangle (d) a small empty box
21. 21.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) two or more cell symbols (c) one tall, one short bar (d) a small empty box
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) switch (c) motor (d) junction
23. 23.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) switch (c) resistor (d) LED
24. 24.Which drawing is the symbol for a junction? (a) a long and a short line (b) triangle, bar and arrows (c) many long-short pairs (d) a dot where wires meet
25. 25.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) a circle with an X in it (d) a small empty box
26. 26.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with a cross (c) triangle against a bar (d) a small empty box
27. 27.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
28. 28.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with V inside (c) a dot where wires meet (d) triangle against a bar
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) ammeter (c) bulb (d) junction
30. 30.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a circle with an X in it (c) many long-short pairs (d) one tall, one short bar
31. 31.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
32. 32.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
33. 33.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
34. 34.True or false: a straight line is the symbol for a capacitor. (a) False (b) True
35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
36. 36.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) capacitor (c) ammeter (d) wire
38. 38.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
39. 39.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) ammeter (c) junction (d) voltmeter

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