Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 354 · 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 equal parallel lines? (a) bulb (b) capacitor (c) wire (d) switch
2. 2.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
3. 3.Which drawing is the symbol for a diode? (a) a small empty box (b) a long and a short line (c) two equal parallel lines (d) triangle against a bar
4. 4.True or false: a straight line is the symbol for a wire. (a) True (b) False
5. 5.Which drawing is the symbol for an ammeter? (a) a circle with M inside (b) a circle with V inside (c) a circle with A inside (d) triangle against a bar
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
8. 8.Which drawing is the symbol for an LED? (a) a small empty box (b) two equal parallel lines (c) triangle, bar and arrows (d) a straight line
9. 9.Which drawing is the symbol for a cell? (a) a circle with A inside (b) triangle, bar and arrows (c) a dot where wires meet (d) a long and a short line
10. 10.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a plain rectangle (c) a circle with a cross (d) two equal parallel lines
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) ammeter (c) wire (d) resistor
12. 12.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) switch (c) wire (d) resistor
13. 13.Which drawing is the symbol for a wire? (a) a circle with V inside (b) a plain rectangle (c) two or more cell symbols (d) a straight line
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) diode (b) capacitor (c) wire (d) switch
15. 15.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
16. 16.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
17. 17.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with A inside (c) triangle against a bar (d) many long-short pairs
18. 18.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) resistor (c) diode (d) capacitor
19. 19.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) capacitor (c) voltmeter (d) battery
20. 20.Which drawing is the symbol for a junction? (a) a small empty box (b) a dot where wires meet (c) two equal parallel lines (d) one tall, one short bar
21. 21.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) switch (c) cell (d) ammeter
23. 23.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True
24. 24.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) bulb (c) switch (d) wire
26. 26.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) battery (c) motor (d) junction
27. 27.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) voltmeter (d) resistor
29. 29.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a line lifted at a gap (c) a small empty box (d) one tall, one short bar
30. 30.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) wire (c) resistor (d) bulb
31. 31.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) capacitor (c) battery (d) bulb
32. 32.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
33. 33.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with V inside (c) a circle with an X in it (d) a circle with a cross
34. 34.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
35. 35.True or false: a plain rectangle is the symbol for a cell. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) ammeter (c) diode (d) bulb
37. 37.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
38. 38.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with an X in it (c) a circle with V inside (d) a long and a short line
39. 39.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
40. 40.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 circle with V inside

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