Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 204 · 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 two or more cell symbols? (a) bulb (b) battery (c) voltmeter (d) ammeter
2. 2.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a circle with an X in it (c) a small empty box (d) a line lifted at a gap
3. 3.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a circle with V inside (c) a straight line (d) triangle against a bar
4. 4.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) switch (c) motor (d) voltmeter
5. 5.✏️ 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
6. 6.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) switch (c) motor (d) capacitor
9. 9.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a small empty box (c) a circle with M inside (d) a plain rectangle
10. 10.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) resistor (c) motor (d) switch
12. 12.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) a circle with A inside (c) triangle against a bar (d) a circle with a cross
13. 13.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with an X in it (c) one tall, one short bar (d) a long and a short line
14. 14.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) cell (c) LED (d) bulb
15. 15.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
16. 16.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
18. 18.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a plain rectangle (c) many long-short pairs (d) a small empty box
19. 19.True or false: a straight line is the symbol for an ammeter. (a) True (b) False
20. 20.Which drawing is the symbol for an LED? (a) many long-short pairs (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with A inside
21. 21.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
22. 22.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
23. 23.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a plain rectangle (c) two equal parallel lines (d) a circle with an X in it
24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) bulb (c) switch (d) resistor
25. 25.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
26. 26.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a small empty box (c) a circle with A inside (d) a dot where wires meet
27. 27.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
28. 28.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
29. 29.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
30. 30.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
31. 31.Which drawing is the symbol for a junction? (a) triangle against a bar (b) one tall, one short bar (c) a circle with A inside (d) a dot where wires meet
32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) wire (c) cell (d) LED
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) resistor (c) diode (d) bulb
34. 34.Which drawing is the symbol for a cell? (a) a long and a short line (b) two equal parallel lines (c) a dot where wires meet (d) a line lifted at a gap
35. 35.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) cell (c) voltmeter (d) battery
36. 36.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) junction (c) bulb (d) LED
38. 38.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) diode (c) switch (d) resistor
39. 39.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a circle with V inside (c) two equal parallel lines (d) one tall, one short bar
40. 40.True or false: two or more cell symbols is the symbol for a voltmeter. (a) True (b) False

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