Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 498 · 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, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
2. 2.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
3. 3.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) bulb (c) switch (d) ammeter
5. 5.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
6. 6.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) triangle against a bar (c) a plain rectangle (d) a circle with an X in it
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) resistor (c) capacitor (d) bulb
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
9. 9.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) cell (c) bulb (d) motor
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) capacitor (c) voltmeter (d) junction
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) battery (c) motor (d) junction
13. 13.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) a circle with A inside (c) two equal parallel lines (d) a circle with a cross
14. 14.True or false: a small empty box is the symbol for a motor. (a) True (b) False
15. 15.Which drawing is the symbol for a motor? (a) a straight line (b) two or more cell symbols (c) a circle with M inside (d) triangle against a bar
16. 16.True or false: a circle with V inside is the symbol for a resistor. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) cell (c) LED (d) capacitor
18. 18.True or false: a straight line is the symbol for a cell. (a) True (b) False
19. 19.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) one tall, one short bar (c) a circle with V inside (d) triangle, bar and arrows
20. 20.Which drawing is the symbol for a wire? (a) a line lifted at a gap (b) a circle with V inside (c) a straight line (d) two or more cell symbols
21. 21.Which drawing is the symbol for a junction? (a) a small empty box (b) a dot where wires meet (c) many long-short pairs (d) a circle with A inside
22. 22.Which drawing is the symbol for an ammeter? (a) a small empty box (b) a long and a short line (c) a circle with V inside (d) a circle with A inside
23. 23.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
24. 24.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
25. 25.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) wire (c) diode (d) LED
27. 27.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) ammeter (c) voltmeter (d) switch
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) junction (c) bulb (d) battery
29. 29.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) two or more cell symbols (c) a circle with an X in it (d) a circle with M inside
30. 30.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
31. 31.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a circle with an X in it (c) a long and a short line (d) triangle against a bar
32. 32.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
33. 33.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) junction (c) cell (d) capacitor
35. 35.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
36. 36.True or false: a circle with M inside is the symbol for a switch. (a) False (b) True
37. 37.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) diode (c) junction (d) cell
39. 39.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) bulb (d) wire
40. 40.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) a circle with V inside (c) a dot where wires meet (d) two equal parallel lines

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