Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 387 · 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) quick and clear for all (d) to make it colourful
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
3. 3.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) many long-short pairs (c) a dot where wires meet (d) a line lifted at a gap
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
5. 5.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a small empty box (c) one tall, one short bar (d) a circle with an X in it
6. 6.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) motor (c) battery (d) capacitor
7. 7.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) wire (c) switch (d) motor
9. 9.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a line lifted at a gap (c) a circle with an X in it (d) a circle with V inside
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) wire (c) ammeter (d) battery
11. 11.Which drawing is the symbol for a cell? (a) a circle with V inside (b) triangle, bar and arrows (c) one tall, one short bar (d) two or more cell symbols
12. 12.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a dot where wires meet (c) triangle against a bar (d) two equal parallel lines
13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) battery (c) bulb (d) wire
14. 14.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
15. 15.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a plain rectangle (c) a circle with V inside (d) a circle with an X in it
16. 16.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
17. 17.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
18. 18.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with an X in it (c) one tall, one short bar (d) a plain rectangle
19. 19.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
20. 20.True or false: many long-short pairs is the symbol for a motor. (a) False (b) True
21. 21.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a straight line (c) a dot where wires meet (d) a long and a short line
22. 22.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) one tall, one short bar (c) a long and a short line (d) two equal parallel lines
23. 23.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) switch (c) LED (d) resistor
24. 24.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) bulb (d) capacitor
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) resistor (c) capacitor (d) junction
26. 26.True or false: a circle with a cross is the symbol for a battery. (a) False (b) True
27. 27.True or false: triangle, bar and arrows is the symbol for a resistor. (a) False (b) True
28. 28.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) ammeter (c) voltmeter (d) wire
30. 30.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) battery (c) bulb (d) switch
32. 32.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
33. 33.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
34. 34.Which drawing is the symbol for an LED? (a) a straight line (b) a circle with M inside (c) triangle, bar and arrows (d) a circle with a cross
35. 35.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
36. 36.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) cell (c) motor (d) bulb
38. 38.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
39. 39.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
40. 40.Which drawing is the symbol for a motor? (a) a circle with M inside (b) triangle, bar and arrows (c) two equal parallel lines (d) a small empty box

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