Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 103 · 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 a switch? (a) two or more cell symbols (b) one tall, one short bar (c) a line lifted at a gap (d) two equal parallel lines
2. 2.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) voltmeter (c) wire (d) ammeter
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) LED (d) switch
4. 4.True or false: triangle against a bar is the symbol for an LED. (a) True (b) False
5. 5.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
7. 7.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) switch (c) bulb (d) LED
9. 9.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) LED (c) diode (d) cell
10. 10.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a small empty box (c) one tall, one short bar (d) a circle with V inside
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) junction (c) resistor (d) cell
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) cell (c) bulb (d) diode
13. 13.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
14. 14.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) a circle with M inside (c) triangle against a bar (d) a dot where wires meet
15. 15.Which drawing is the symbol for a wire? (a) a circle with V inside (b) a straight line (c) triangle, bar and arrows (d) two equal parallel lines
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) voltmeter (c) bulb (d) cell
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
18. 18.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) voltmeter (c) capacitor (d) junction
19. 19.True or false: a straight line is the symbol for a wire. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) capacitor (c) cell (d) wire
21. 21.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
22. 22.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
23. 23.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) triangle against a bar (c) a circle with an X in it (d) a circle with V inside
24. 24.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) False (b) True
25. 25.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) a line lifted at a gap (c) two equal parallel lines (d) a plain rectangle
26. 26.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
27. 27.Which drawing is the symbol for a battery? (a) a long and a short line (b) a circle with V inside (c) a line lifted at a gap (d) two or more cell symbols
28. 28.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a dot where wires meet (c) a circle with a cross (d) a circle with A inside
29. 29.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with M inside (c) many long-short pairs (d) a long and a short line
30. 30.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) resistor (c) cell (d) switch
32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) bulb (c) cell (d) wire
33. 33.Which drawing is the symbol for a battery? (a) a straight line (b) two equal parallel lines (c) one tall, one short bar (d) many long-short pairs
34. 34.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a long and a short line (c) a circle with a cross (d) two equal parallel lines
35. 35.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
36. 36.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a line lifted at a gap (c) a circle with M inside (d) a circle with a cross
37. 37.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) LED (c) bulb (d) motor
38. 38.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
39. 39.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) many long-short pairs (c) a plain rectangle (d) a circle with an X in it
40. 40.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False

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