Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 955 · 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.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
2. 2.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a dot where wires meet (c) two or more cell symbols (d) a circle with an X in it
3. 3.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with an X in it (c) a dot where wires meet (d) a line lifted at a gap
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) bulb (c) switch (d) diode
5. 5.True or false: a straight line is the symbol for a wire. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) junction (c) diode (d) ammeter
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
8. 8.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) diode (c) capacitor (d) LED
10. 10.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) a circle with M inside (c) two equal parallel lines (d) a long and a short line
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) diode (c) voltmeter (d) resistor
13. 13.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a small empty box (c) a long and a short line (d) a circle with M inside
14. 14.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
15. 15.Which drawing is the symbol for a switch? (a) a straight line (b) triangle against a bar (c) a long and a short line (d) a line lifted at a gap
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) junction (c) voltmeter (d) bulb
17. 17.True or false: a straight line is the symbol for a switch. (a) True (b) False
18. 18.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) motor (c) LED (d) voltmeter
20. 20.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) a long and a short line (c) a plain rectangle (d) a circle with A inside
21. 21.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with V inside (c) a circle with A inside (d) a long and a short line
22. 22.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False
23. 23.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) a dot where wires meet (c) a circle with V inside (d) triangle, bar and arrows
24. 24.True or false: a long and a short line is the symbol for a resistor. (a) False (b) True
25. 25.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) diode (c) cell (d) resistor
27. 27.True or false: two or more cell symbols is the symbol for a junction. (a) False (b) True
28. 28.True or false: many long-short pairs is the symbol for a cell. (a) True (b) False
29. 29.✏️ 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
30. 30.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) True (b) False
31. 31.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) a plain rectangle (c) many long-short pairs (d) one tall, one short bar
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) junction (c) bulb (d) motor
33. 33.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a straight line (c) a line lifted at a gap (d) two equal parallel lines
34. 34.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) diode (c) voltmeter (d) junction
36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) junction (c) ammeter (d) battery
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) bulb (c) motor (d) switch
38. 38.True or false: one tall, one short bar is the symbol for a voltmeter. (a) False (b) True
39. 39.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
40. 40.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True

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