Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 744 · 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 a cell? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with an X in it (d) a circle with V inside
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) resistor (c) voltmeter (d) switch
3. 3.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) resistor (c) wire (d) diode
4. 4.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) resistor (c) voltmeter (d) ammeter
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
6. 6.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) battery (c) switch (d) cell
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
9. 9.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) voltmeter (c) capacitor (d) motor
11. 11.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) triangle against a bar (c) a circle with V inside (d) a line lifted at a gap
12. 12.True or false: a straight line is the symbol for a diode. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) junction (c) resistor (d) battery
14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) junction (c) switch (d) cell
15. 15.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with a cross (c) two equal parallel lines (d) many long-short pairs
16. 16.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
17. 17.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) a small empty box (c) two equal parallel lines (d) one tall, one short bar
18. 18.Which drawing is the symbol for a bulb? (a) a straight line (b) triangle, bar and arrows (c) a circle with an X in it (d) many long-short pairs
19. 19.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
20. 20.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
21. 21.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) motor (c) switch (d) ammeter
23. 23.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
24. 24.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) triangle, bar and arrows (c) triangle against a bar (d) a line lifted at a gap
25. 25.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) bulb (c) switch (d) diode
26. 26.Which drawing is the symbol for an LED? (a) a straight line (b) triangle against a bar (c) triangle, bar and arrows (d) a plain rectangle
27. 27.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
28. 28.Which drawing is the symbol for a junction? (a) a long and a short line (b) a dot where wires meet (c) one tall, one short bar (d) two equal parallel lines
29. 29.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) bulb (c) wire (d) cell
30. 30.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) capacitor (c) diode (d) LED
31. 31.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a straight line (c) many long-short pairs (d) a long and a short line
32. 32.True or false: triangle against a bar is the symbol for an ammeter. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) voltmeter (c) battery (d) resistor
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) LED (c) bulb (d) diode
35. 35.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) LED (c) wire (d) ammeter
36. 36.True or false: a small empty box is the symbol for a motor. (a) False (b) True
37. 37.True or false: a small empty box is the symbol for a battery. (a) True (b) False
38. 38.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
39. 39.True or false: a circle with V inside is the symbol for a cell. (a) False (b) True
40. 40.Which drawing is the symbol for a motor? (a) triangle against a bar (b) many long-short pairs (c) triangle, bar and arrows (d) a circle with M inside

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