Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 685 · 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 a dot where wires meet? (a) bulb (b) junction (c) motor (d) voltmeter
2. 2.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) voltmeter (c) bulb (d) wire
3. 3.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) False (b) True
4. 4.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) a circle with M inside (c) many long-short pairs (d) triangle, bar and arrows
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
6. 6.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
7. 7.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with A inside (c) a straight line (d) a circle with a cross
8. 8.Which drawing is the symbol for a battery? (a) a circle with A inside (b) one tall, one short bar (c) a circle with a cross (d) two or more cell symbols
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) LED (c) ammeter (d) voltmeter
10. 10.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) voltmeter (c) bulb (d) cell
11. 11.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a dot where wires meet (c) triangle, bar and arrows (d) a circle with V inside
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) motor (c) diode (d) junction
13. 13.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
14. 14.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a circle with an X in it (c) one tall, one short bar (d) a circle with A inside
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
16. 16.True or false: a straight line is the symbol for a resistor. (a) True (b) False
17. 17.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) bulb (c) ammeter (d) LED
19. 19.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) resistor (c) capacitor (d) battery
21. 21.True or false: a straight line is the symbol for an LED. (a) True (b) False
22. 22.Which drawing is the symbol for a motor? (a) a circle with a cross (b) a circle with M inside (c) a small empty box (d) many long-short pairs
23. 23.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
24. 24.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
25. 25.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
26. 26.Which drawing is the symbol for a switch? (a) a plain rectangle (b) a long and a short line (c) a line lifted at a gap (d) triangle, bar and arrows
27. 27.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) two equal parallel lines (c) a line lifted at a gap (d) a long and a short line
28. 28.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a line lifted at a gap (c) triangle, bar and arrows (d) triangle against a bar
29. 29.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) resistor (c) diode (d) bulb
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) voltmeter (c) switch (d) junction
32. 32.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) diode (c) switch (d) motor
33. 33.True or false: a line lifted at a gap is the symbol for a bulb. (a) False (b) True
34. 34.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) many long-short pairs (c) a circle with a cross (d) a circle with V inside
35. 35.Which drawing is the symbol for a wire? (a) a small empty box (b) a circle with M inside (c) a circle with a cross (d) a straight line
36. 36.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
37. 37.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
38. 38.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) one tall, one short bar (c) a circle with M inside (d) a circle with A inside
39. 39.True or false: two or more cell symbols is the symbol for a switch. (a) True (b) False
40. 40.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False

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