Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 206 · 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 a plain rectangle? (a) wire (b) motor (c) bulb (d) resistor
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) junction (c) battery (d) wire
3. 3.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a circle with a cross (c) a small empty box (d) a circle with V inside
4. 4.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) capacitor (c) wire (d) LED
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) diode (c) voltmeter (d) ammeter
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) switch (c) bulb (d) cell
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) cell (c) capacitor (d) battery
10. 10.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a circle with V inside (c) a long and a short line (d) a circle with M inside
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) battery (d) voltmeter
12. 12.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) a dot where wires meet (d) a plain rectangle
13. 13.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
15. 15.True or false: a circle with A inside is the symbol for a battery. (a) False (b) True
16. 16.True or false: many long-short pairs is the symbol for an LED. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) LED (c) switch (d) junction
18. 18.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) ammeter (c) diode (d) wire
20. 20.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with an X in it (c) many long-short pairs (d) two or more cell symbols
21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) diode (c) cell (d) voltmeter
22. 22.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
23. 23.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
24. 24.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
25. 25.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
26. 26.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) triangle against a bar (c) two or more cell symbols (d) one tall, one short bar
27. 27.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
28. 28.True or false: triangle, bar and arrows is the symbol for a switch. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) cell (d) switch
30. 30.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with a cross (c) a line lifted at a gap (d) one tall, one short bar
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) diode (c) capacitor (d) cell
32. 32.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a dot where wires meet (c) a circle with V inside (d) a line lifted at a gap
33. 33.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a plain rectangle (c) triangle, bar and arrows (d) many long-short pairs
34. 34.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
35. 35.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a dot where wires meet (c) a circle with an X in it (d) two equal parallel lines
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) ammeter (c) bulb (d) capacitor
37. 37.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
38. 38.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
39. 39.True or false: triangle against a bar is the symbol for a cell. (a) False (b) True
40. 40.Which drawing is the symbol for a diode? (a) a small empty box (b) triangle against a bar (c) a circle with M inside (d) a circle with an X in it

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