Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 434 · 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 circle with A inside is the symbol for a junction. (a) False (b) True
2. 2.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) triangle against a bar (c) many long-short pairs (d) one tall, one short bar
3. 3.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) bulb (c) diode (d) battery
4. 4.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
6. 6.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
7. 7.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a circle with V inside (c) a small empty box (d) a straight line
8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) diode (c) junction (d) LED
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
10. 10.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
11. 11.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) a long and a short line (c) a circle with a cross (d) many long-short pairs
12. 12.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) motor (c) resistor (d) junction
14. 14.Which drawing is the symbol for a diode? (a) a long and a short line (b) a line lifted at a gap (c) triangle, bar and arrows (d) triangle against a bar
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) battery (c) cell (d) diode
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) junction (c) bulb (d) voltmeter
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) bulb (c) ammeter (d) wire
18. 18.Which drawing is the symbol for a resistor? (a) a straight line (b) a plain rectangle (c) triangle against a bar (d) many long-short pairs
19. 19.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) one tall, one short bar (c) a circle with M inside (d) a circle with a cross
20. 20.True or false: a long and a short line is the symbol for a resistor. (a) False (b) True
21. 21.Which drawing is the symbol for a battery? (a) a plain rectangle (b) two or more cell symbols (c) a circle with an X in it (d) triangle against a bar
22. 22.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
23. 23.True or false: a circle with M inside is the symbol for a battery. (a) False (b) True
24. 24.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) motor (c) LED (d) wire
26. 26.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with A inside
27. 27.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
28. 28.True or false: a plain rectangle is the symbol for a voltmeter. (a) True (b) False
29. 29.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
30. 30.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a straight line (c) a long and a short line (d) two or more cell symbols
31. 31.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
32. 32.True or false: a dot where wires meet is the symbol for a wire. (a) True (b) False
33. 33.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a circle with an X in it (c) a straight line (d) two equal parallel lines
34. 34.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) battery (c) bulb (d) voltmeter
35. 35.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a circle with A inside (c) a small empty box (d) triangle, bar and arrows
36. 36.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
37. 37.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
38. 38.True or false: many long-short pairs is the symbol for a motor. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) diode (c) capacitor (d) voltmeter
40. 40.Which drawing is the symbol for a junction? (a) a plain rectangle (b) a line lifted at a gap (c) two equal parallel lines (d) a dot where wires meet

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