Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 254 · 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 a cell. (a) False (b) True
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) bulb (c) resistor (d) cell
4. 4.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) wire (c) bulb (d) junction
5. 5.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) a circle with a cross (d) a dot where wires meet
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) ammeter (c) diode (d) bulb
7. 7.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) resistor (c) capacitor (d) battery
8. 8.True or false: a circle with a cross is the symbol for a cell. (a) False (b) True
9. 9.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a circle with M inside (c) two or more cell symbols (d) a circle with V inside
10. 10.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) LED (c) wire (d) capacitor
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) capacitor (c) switch (d) junction
14. 14.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
15. 15.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
16. 16.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a long and a short line (c) a circle with V inside (d) many long-short pairs
17. 17.Which drawing is the symbol for a wire? (a) a small empty box (b) a long and a short line (c) one tall, one short bar (d) a straight line
18. 18.True or false: a straight line is the symbol for a cell. (a) True (b) False
19. 19.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) bulb (c) wire (d) battery
20. 20.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with A inside (c) many long-short pairs (d) a circle with an X in it
21. 21.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) one tall, one short bar (c) a circle with A inside (d) a plain rectangle
22. 22.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
23. 23.True or false: a straight line is the symbol for a resistor. (a) True (b) False
24. 24.Which drawing is the symbol for a battery? (a) many long-short pairs (b) two equal parallel lines (c) a circle with V inside (d) a circle with A inside
25. 25.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) one tall, one short bar (c) a circle with a cross (d) two equal parallel lines
26. 26.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) ammeter (c) cell (d) bulb
27. 27.Which drawing is the symbol for a switch? (a) a small empty box (b) a line lifted at a gap (c) a circle with M inside (d) triangle, bar and arrows
28. 28.Which drawing is the symbol for a cell? (a) a straight line (b) triangle, bar and arrows (c) a small empty box (d) a long and a short line
29. 29.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) cell (c) resistor (d) junction
31. 31.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) many long-short pairs (c) a small empty box (d) a dot where wires meet
32. 32.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) switch (c) ammeter (d) bulb
33. 33.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) a plain rectangle (c) one tall, one short bar (d) a dot where wires meet
34. 34.True or false: two or more cell symbols is the symbol for a cell. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) junction (c) ammeter (d) battery
36. 36.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with an X in it (c) a circle with M inside (d) a small empty box
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) switch (c) resistor (d) bulb
38. 38.True or false: a circle with A inside is the symbol for an LED. (a) False (b) True
39. 39.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
40. 40.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False

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