Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 418 · 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 junction? (a) two or more cell symbols (b) a long and a short line (c) triangle, bar and arrows (d) a dot where wires meet
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) motor (c) junction (d) ammeter
3. 3.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) bulb (c) battery (d) diode
5. 5.True or false: a circle with M inside is the symbol for an LED. (a) True (b) False
6. 6.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a plain rectangle (c) two or more cell symbols (d) a small empty box
7. 7.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with an X in it (c) two or more cell symbols (d) triangle, bar and arrows
8. 8.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) a circle with a cross (c) triangle, bar and arrows (d) two or more cell symbols
9. 9.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) junction (c) switch (d) ammeter
12. 12.Which drawing is the symbol for a cell? (a) a straight line (b) a circle with a cross (c) a circle with an X in it (d) a long and a short line
13. 13.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) triangle against a bar (c) a small empty box (d) a line lifted at a gap
14. 14.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
15. 15.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
16. 16.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) bulb (c) battery (d) diode
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) motor (c) battery (d) cell
19. 19.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) battery (c) resistor (d) LED
20. 20.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
21. 21.True or false: a circle with M inside is the symbol for a wire. (a) False (b) True
22. 22.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with a cross (c) one tall, one short bar (d) a circle with M inside
23. 23.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
24. 24.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a plain rectangle (c) triangle, bar and arrows (d) a circle with a cross
25. 25.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a circle with a cross (c) triangle, bar and arrows (d) a circle with V inside
26. 26.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) diode (c) voltmeter (d) ammeter
28. 28.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a circle with A inside (c) a circle with M inside (d) triangle, bar and arrows
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) LED (d) ammeter
30. 30.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
31. 31.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) capacitor (c) battery (d) junction
33. 33.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) junction (c) bulb (d) resistor
34. 34.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with A inside (c) a circle with a cross (d) two or more cell symbols
35. 35.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) junction (c) resistor (d) capacitor
37. 37.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
38. 38.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a line lifted at a gap (c) one tall, one short bar (d) a straight line
39. 39.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) junction (c) battery (d) wire
40. 40.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) wire (c) junction (d) capacitor

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