Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 769 · 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.Which drawing is the symbol for an LED? (a) a long and a short line (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with V inside
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) voltmeter (c) diode (d) cell
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) wire (c) ammeter (d) bulb
4. 4.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) LED (c) battery (d) voltmeter
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) resistor (d) junction
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) motor (c) junction (d) wire
7. 7.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) LED (c) bulb (d) cell
9. 9.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a dot where wires meet (c) a plain rectangle (d) a circle with V inside
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) switch (c) LED (d) ammeter
12. 12.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a plain rectangle (c) two equal parallel lines (d) a dot where wires meet
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) capacitor (c) junction (d) LED
14. 14.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a line lifted at a gap (c) a straight line (d) two or more cell symbols
15. 15.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) wire (c) switch (d) cell
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 two equal parallel lines? (a) cell (b) capacitor (c) resistor (d) LED
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) motor (c) resistor (d) cell
19. 19.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) resistor (c) voltmeter (d) motor
20. 20.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) ammeter (c) wire (d) switch
21. 21.True or false: triangle against a bar is the symbol for a voltmeter. (a) False (b) True
22. 22.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a long and a short line (c) triangle against a bar (d) one tall, one short bar
23. 23.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) two or more cell symbols (c) a small empty box (d) two equal parallel lines
24. 24.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
25. 25.True or false: triangle, bar and arrows is the symbol for a diode. (a) True (b) False
26. 26.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
27. 27.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) triangle, bar and arrows (c) a small empty box (d) many long-short pairs
28. 28.True or false: a straight line is the symbol for a switch. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) ammeter (c) capacitor (d) battery
30. 30.True or false: a small empty box is the symbol for a diode. (a) True (b) False
31. 31.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) bulb (c) LED (d) diode
33. 33.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
34. 34.Which drawing is the symbol for a cell? (a) a circle with M inside (b) two or more cell symbols (c) a straight line (d) a long and a short line
35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
36. 36.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) a circle with a cross (c) a plain rectangle (d) a circle with A inside
37. 37.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
38. 38.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) battery (c) motor (d) resistor
40. 40.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True

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