Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 724 · 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 voltmeter? (a) a long and a short line (b) a circle with V inside (c) a small empty box (d) many long-short pairs
2. 2.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) battery (c) switch (d) cell
4. 4.True or false: a circle with A inside is the symbol for a voltmeter. (a) False (b) True
5. 5.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) junction (c) wire (d) motor
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) ammeter (c) battery (d) capacitor
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) diode (c) ammeter (d) capacitor
10. 10.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
11. 11.Which drawing is the symbol for an LED? (a) a circle with A inside (b) triangle, bar and arrows (c) two equal parallel lines (d) one tall, one short bar
12. 12.Which drawing is the symbol for a switch? (a) a small empty box (b) a line lifted at a gap (c) a dot where wires meet (d) a circle with a cross
13. 13.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with a cross (c) a circle with an X in it (d) two equal parallel lines
14. 14.Which drawing is the symbol for a battery? (a) a long and a short line (b) many long-short pairs (c) a dot where wires meet (d) a circle with V inside
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) LED (c) ammeter (d) voltmeter
16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) motor (c) resistor (d) cell
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) wire (c) junction (d) cell
18. 18.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a straight line (c) triangle against a bar (d) a circle with V inside
19. 19.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) ammeter (c) motor (d) switch
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) capacitor (c) motor (d) wire
22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) wire (c) junction (d) cell
23. 23.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) battery (c) capacitor (d) resistor
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) junction (c) bulb (d) cell
25. 25.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
26. 26.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
27. 27.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
28. 28.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
29. 29.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) wire (c) capacitor (d) switch
31. 31.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a small empty box (c) a long and a short line (d) many long-short pairs
32. 32.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
33. 33.Which drawing is the symbol for a bulb? (a) a small empty box (b) triangle, bar and arrows (c) a circle with a cross (d) a straight line
34. 34.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) a dot where wires meet (d) two or more cell symbols
35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
36. 36.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
37. 37.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
38. 38.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
39. 39.True or false: many long-short pairs is the symbol for a battery. (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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