Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 610 · 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: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
3. 3.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
4. 4.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) cell (c) LED (d) battery
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
7. 7.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
8. 8.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a straight line (c) two or more cell symbols (d) a line lifted at a gap
9. 9.Which drawing is the symbol for a diode? (a) a circle with A inside (b) a small empty box (c) triangle against a bar (d) a long and a short line
10. 10.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) motor (c) cell (d) voltmeter
12. 12.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) triangle against a bar (c) two equal parallel lines (d) a plain rectangle
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) bulb (c) cell (d) capacitor
14. 14.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
15. 15.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
16. 16.Which drawing is the symbol for a bulb? (a) a small empty box (b) triangle, bar and arrows (c) two equal parallel lines (d) a circle with a cross
17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) bulb (c) capacitor (d) voltmeter
18. 18.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
19. 19.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a plain rectangle (c) two or more cell symbols (d) a dot where wires meet
20. 20.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a circle with M inside (c) a plain rectangle (d) a straight line
21. 21.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
22. 22.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) switch (c) LED (d) battery
24. 24.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
25. 25.True or false: a dot where wires meet is the symbol for a resistor. (a) True (b) False
26. 26.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a line lifted at a gap (c) a circle with A inside (d) two equal parallel lines
27. 27.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) switch (c) capacitor (d) voltmeter
28. 28.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) two equal parallel lines (c) a circle with V inside (d) a circle with A inside
29. 29.Which drawing is the symbol for a cell? (a) many long-short pairs (b) two or more cell symbols (c) a long and a short line (d) a circle with V inside
30. 30.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a dot where wires meet (c) one tall, one short bar (d) a circle with a cross
31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) resistor (c) motor (d) switch
32. 32.True or false: a long and a short line is the symbol for a resistor. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) switch (c) voltmeter (d) battery
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) switch (c) bulb (d) diode
35. 35.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False
36. 36.Which drawing is the symbol for an LED? (a) a circle with V inside (b) triangle, bar and arrows (c) one tall, one short bar (d) a circle with a cross
37. 37.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a circle with an X in it (c) triangle against a bar (d) many long-short pairs
38. 38.True or false: a straight line is the symbol for a wire. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) bulb (c) capacitor (d) motor
40. 40.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False

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