Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 432 · 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 plain rectangle is the symbol for a switch. (a) True (b) False
2. 2.Which drawing is the symbol for an LED? (a) a circle with M inside (b) triangle, bar and arrows (c) triangle against a bar (d) a circle with an X in it
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) ammeter (c) junction (d) cell
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) bulb (c) battery (d) diode
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) junction (c) battery (d) bulb
6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) bulb (c) resistor (d) diode
7. 7.Which drawing is the symbol for a motor? (a) two equal parallel lines (b) a circle with an X in it (c) a circle with M inside (d) a circle with V inside
8. 8.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) LED (d) voltmeter
9. 9.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a long and a short line (c) a circle with a cross (d) a plain rectangle
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) motor (c) voltmeter (d) ammeter
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) voltmeter (c) bulb (d) resistor
12. 12.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
14. 14.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) voltmeter (c) cell (d) bulb
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) bulb (c) motor (d) voltmeter
16. 16.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
17. 17.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
18. 18.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with a cross (c) a small empty box (d) one tall, one short bar
19. 19.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
20. 20.Which drawing is the symbol for a cell? (a) a circle with M inside (b) one tall, one short bar (c) triangle against a bar (d) triangle, bar and arrows
21. 21.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) ammeter (c) battery (d) wire
23. 23.True or false: a small empty box is the symbol for a cell. (a) True (b) False
24. 24.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
25. 25.True or false: a straight line is the symbol for a junction. (a) True (b) False
26. 26.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with an X in it (d) triangle against a bar
27. 27.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a line lifted at a gap (c) one tall, one short bar (d) a long and a short line
28. 28.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) one tall, one short bar (c) a circle with A inside (d) triangle against a bar
29. 29.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) cell (c) LED (d) bulb
31. 31.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
32. 32.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) wire (c) junction (d) bulb
34. 34.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a straight line (c) a circle with V inside (d) a dot where wires meet
35. 35.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
36. 36.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
37. 37.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a circle with an X in it (c) a long and a short line (d) a dot where wires meet
38. 38.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) one tall, one short bar (c) two or more cell symbols (d) a circle with a cross
39. 39.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) voltmeter (c) LED (d) switch

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