Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 653 · 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.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) cell (d) switch
2. 2.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
3. 3.True or false: a small empty box is the symbol for a switch. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) switch (c) wire (d) resistor
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) junction (c) capacitor (d) diode
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) bulb (c) resistor (d) junction
7. 7.Which drawing is the symbol for a cell? (a) a straight line (b) a plain rectangle (c) two or more cell symbols (d) a long and a short line
8. 8.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
9. 9.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with an X in it (c) a dot where wires meet (d) one tall, one short bar
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
11. 11.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with M inside (c) two or more cell symbols (d) a straight line
12. 12.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
13. 13.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
15. 15.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) switch (c) bulb (d) battery
16. 16.Which drawing is the symbol for a junction? (a) many long-short pairs (b) one tall, one short bar (c) a dot where wires meet (d) a small empty box
17. 17.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with V inside (c) a circle with a cross (d) one tall, one short bar
18. 18.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with an X in it (c) a straight line (d) a long and a short line
19. 19.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) battery (c) voltmeter (d) wire
20. 20.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a circle with a cross (c) one tall, one short bar (d) a circle with M inside
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) LED (c) bulb (d) resistor
22. 22.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a straight line (c) two or more cell symbols (d) a small empty box
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) battery (c) cell (d) switch
24. 24.✏️ 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
25. 25.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with an X in it (c) two or more cell symbols (d) triangle, bar and arrows
26. 26.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) cell (c) bulb (d) LED
28. 28.True or false: a small empty box is the symbol for a cell. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) wire (c) capacitor (d) voltmeter
30. 30.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) one tall, one short bar (c) a circle with V inside (d) a circle with a cross
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) switch (c) resistor (d) junction
32. 32.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) resistor (c) wire (d) bulb
33. 33.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a circle with V inside (c) a long and a short line (d) a small empty box
34. 34.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
35. 35.True or false: a dot where wires meet is the symbol for an ammeter. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) switch (c) wire (d) cell
37. 37.Which drawing is the symbol for a battery? (a) a small empty box (b) a circle with an X in it (c) many long-short pairs (d) a long and a short line
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) voltmeter (c) junction (d) battery
39. 39.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
40. 40.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False

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