Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 130 · 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 an LED? (a) a circle with an X in it (b) a circle with a cross (c) triangle, bar and arrows (d) a circle with M inside
2. 2.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) junction (c) cell (d) switch
3. 3.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
4. 4.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a small empty box (c) a circle with an X in it (d) a line lifted at a gap
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) diode (d) bulb
6. 6.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) bulb (c) wire (d) battery
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) cell (c) battery (d) junction
9. 9.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a line lifted at a gap (c) a circle with V inside (d) a circle with M inside
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
12. 12.True or false: triangle against a bar is the symbol for a motor. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) LED (c) switch (d) resistor
14. 14.True or false: a dot where wires meet is the symbol for a voltmeter. (a) False (b) True
15. 15.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) bulb (c) voltmeter (d) wire
17. 17.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
18. 18.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) LED (c) resistor (d) capacitor
20. 20.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) bulb (c) battery (d) resistor
21. 21.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a plain rectangle (c) a dot where wires meet (d) a long and a short line
22. 22.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
23. 23.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
24. 24.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) two or more cell symbols (c) a long and a short line (d) triangle against a bar
25. 25.Which drawing is the symbol for a motor? (a) a circle with V inside (b) triangle against a bar (c) a circle with M inside (d) many long-short pairs
26. 26.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
27. 27.Which drawing is the symbol for a wire? (a) a straight line (b) a plain rectangle (c) a circle with an X in it (d) a small empty box
28. 28.True or false: a straight line is the symbol for a bulb. (a) False (b) True
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) voltmeter (c) motor (d) diode
31. 31.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle against a bar (c) two or more cell symbols (d) triangle, bar and arrows
32. 32.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) voltmeter (c) LED (d) switch
34. 34.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) wire (c) battery (d) cell
36. 36.Which drawing is the symbol for a cell? (a) a long and a short line (b) a dot where wires meet (c) two or more cell symbols (d) a line lifted at a gap
37. 37.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with a cross (c) triangle, bar and arrows (d) a straight line
38. 38.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) LED (c) junction (d) cell
39. 39.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
40. 40.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False

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