Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 104 · 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.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
2. 2.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
3. 3.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
4. 4.True or false: a line lifted at a gap is the symbol for a bulb. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) diode (c) cell (d) LED
6. 6.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) junction (c) LED (d) diode
9. 9.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) resistor (c) battery (d) motor
11. 11.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) switch (c) diode (d) cell
12. 12.Which drawing is the symbol for a battery? (a) a circle with A inside (b) one tall, one short bar (c) two or more cell symbols (d) triangle against a bar
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
14. 14.Which drawing is the symbol for a wire? (a) a straight line (b) triangle, bar and arrows (c) triangle against a bar (d) a circle with an X in it
15. 15.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) wire (c) resistor (d) diode
16. 16.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a line lifted at a gap (c) one tall, one short bar (d) two equal parallel lines
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) junction (c) bulb (d) ammeter
18. 18.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
19. 19.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) triangle against a bar (c) two or more cell symbols (d) a circle with M inside
20. 20.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) resistor (c) bulb (d) wire
21. 21.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) ammeter (c) capacitor (d) wire
23. 23.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) junction (c) battery (d) wire
24. 24.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) two or more cell symbols (c) triangle against a bar (d) a circle with V inside
25. 25.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
26. 26.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) two equal parallel lines (c) one tall, one short bar (d) triangle, bar and arrows
27. 27.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with an X in it (c) a dot where wires meet (d) a long and a short line
28. 28.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a plain rectangle (c) a dot where wires meet (d) a circle with M inside
29. 29.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a circle with a cross (c) a straight line (d) a plain rectangle
30. 30.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) ammeter (c) motor (d) battery
32. 32.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
33. 33.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with A inside (c) one tall, one short bar (d) a circle with V inside
34. 34.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with an X in it (c) many long-short pairs (d) a circle with M inside
35. 35.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
36. 36.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) resistor (c) junction (d) motor
38. 38.True or false: a circle with an X in it is the symbol for a capacitor. (a) False (b) True
39. 39.Which drawing is the symbol for a battery? (a) a circle with V inside (b) a straight line (c) many long-short pairs (d) triangle against a bar
40. 40.True or false: triangle against a bar is the symbol for a wire. (a) False (b) True

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