Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 234 · 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 plain rectangle (b) a circle with M inside (c) a circle with an X in it (d) triangle, bar and arrows
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) wire (d) ammeter
3. 3.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) two equal parallel lines (c) a circle with M inside (d) a dot where wires meet
4. 4.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a circle with V inside (c) triangle against a bar (d) a circle with an X in it
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
7. 7.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a circle with V inside (c) triangle against a bar (d) a dot where wires meet
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) cell (c) capacitor (d) motor
9. 9.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) switch (d) capacitor
11. 11.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
12. 12.True or false: a straight line is the symbol for a wire. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) cell (c) LED (d) capacitor
14. 14.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a line lifted at a gap (c) triangle, bar and arrows (d) a circle with A inside
15. 15.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) bulb (c) motor (d) voltmeter
17. 17.True or false: a straight line is the symbol for a bulb. (a) False (b) True
18. 18.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
19. 19.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
20. 20.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
21. 21.True or false: two equal parallel lines is the symbol for a wire. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) LED (c) switch (d) junction
23. 23.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) switch (c) voltmeter (d) ammeter
25. 25.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) two equal parallel lines (c) a circle with M inside (d) a circle with a cross
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) capacitor (c) diode (d) bulb
27. 27.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
28. 28.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
29. 29.True or false: a circle with V inside is the symbol for a motor. (a) False (b) True
30. 30.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with V inside (c) many long-short pairs (d) triangle against a bar
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) resistor (c) cell (d) voltmeter
32. 32.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a dot where wires meet (c) two or more cell symbols (d) a circle with V inside
33. 33.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
34. 34.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
35. 35.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) diode (c) LED (d) battery
37. 37.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a straight line (c) a circle with an X in it (d) a dot where wires meet
38. 38.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a circle with V inside (c) a straight line (d) a circle with M inside
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) voltmeter (c) switch (d) wire
40. 40.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) resistor (c) voltmeter (d) switch

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