Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 398 · 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 many long-short pairs? (a) LED (b) capacitor (c) resistor (d) battery
2. 2.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
3. 3.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with V inside (c) one tall, one short bar (d) many long-short pairs
4. 4.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) cell (c) battery (d) diode
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) junction (c) battery (d) cell
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) resistor (c) capacitor (d) cell
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) resistor (c) motor (d) diode
9. 9.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) many long-short pairs (c) a dot where wires meet (d) two or more cell symbols
10. 10.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
11. 11.True or false: a straight line is the symbol for an LED. (a) True (b) False
12. 12.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a circle with a cross (c) many long-short pairs (d) triangle, bar and arrows
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
14. 14.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) diode (c) cell (d) wire
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.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
18. 18.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with an X in it
19. 19.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
20. 20.Which drawing is the symbol for a cell? (a) a small empty box (b) many long-short pairs (c) a plain rectangle (d) one tall, one short bar
21. 21.True or false: a circle with M inside is the symbol for an ammeter. (a) True (b) False
22. 22.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) triangle, bar and arrows (c) triangle against a bar (d) a plain rectangle
23. 23.True or false: a circle with an X in it is the symbol for a junction. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) wire (c) resistor (d) ammeter
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) junction (c) LED (d) diode
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) motor (c) LED (d) bulb
27. 27.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
28. 28.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a circle with A inside (c) triangle against a bar (d) one tall, one short bar
29. 29.Which drawing is the symbol for a wire? (a) a small empty box (b) a straight line (c) two or more cell symbols (d) a circle with an X in it
30. 30.True or false: a plain rectangle is the symbol for a cell. (a) False (b) True
31. 31.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
32. 32.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) a circle with M inside (c) a circle with V inside (d) a long and a short line
33. 33.Which drawing is the symbol for a resistor? (a) a small empty box (b) two equal parallel lines (c) two or more cell symbols (d) a circle with a cross
34. 34.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
35. 35.Which drawing is the symbol for a motor? (a) a long and a short line (b) one tall, one short bar (c) a circle with M inside (d) a plain rectangle
36. 36.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) capacitor (c) cell (d) motor
37. 37.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) LED (c) ammeter (d) cell
39. 39.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
40. 40.True or false: triangle against a bar is the symbol for a wire. (a) False (b) True

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