Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 236 · 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 line lifted at a gap (b) a small empty box (c) triangle, bar and arrows (d) a straight line
2. 2.Which drawing is the symbol for a motor? (a) a small empty box (b) many long-short pairs (c) a circle with M inside (d) a circle with an X in it
3. 3.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a straight line (c) a line lifted at a gap (d) a dot where wires meet
4. 4.True or false: a circle with M inside is the symbol for a battery. (a) False (b) True
5. 5.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
6. 6.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with an X in it (c) a plain rectangle (d) triangle against a bar
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) junction (c) capacitor (d) resistor
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) voltmeter (c) ammeter (d) cell
9. 9.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) ammeter (c) resistor (d) capacitor
10. 10.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a line lifted at a gap (c) a circle with V inside (d) a circle with a cross
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
12. 12.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with a cross (c) many long-short pairs (d) a dot where wires meet
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
14. 14.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a small empty box (c) one tall, one short bar (d) two or more cell symbols
15. 15.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with M inside (c) a straight line (d) a circle with V inside
16. 16.True or false: a circle with V inside is the symbol for a cell. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) switch (d) junction
18. 18.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
19. 19.True or false: a dot where wires meet is the symbol for a voltmeter. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) cell (c) junction (d) battery
21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) junction (c) cell (d) battery
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) cell (c) junction (d) voltmeter
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) diode (c) resistor (d) wire
24. 24.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
25. 25.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
26. 26.True or false: a small empty box is the symbol for a wire. (a) True (b) False
27. 27.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
28. 28.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
29. 29.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
30. 30.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
31. 31.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with V inside (c) a circle with A inside (d) a circle with a cross
32. 32.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) cell (c) battery (d) junction
34. 34.Which drawing is the symbol for a diode? (a) a long and a short line (b) a circle with an X in it (c) triangle against a bar (d) a small empty box
35. 35.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) diode (c) switch (d) resistor
37. 37.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) capacitor (c) switch (d) wire
38. 38.True or false: triangle, bar and arrows is the symbol for a wire. (a) False (b) True
39. 39.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
40. 40.True or false: a circle with M inside is the symbol for a capacitor. (a) False (b) True

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