Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 663 · 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 small empty box is the symbol for a wire. (a) False (b) True
2. 2.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) switch (c) wire (d) battery
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
5. 5.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a straight line (c) a circle with M inside (d) a long and a short line
6. 6.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a long and a short line (c) two equal parallel lines (d) a circle with a cross
7. 7.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a long and a short line (c) a straight line (d) a circle with a cross
8. 8.Which drawing is the symbol for a voltmeter? (a) a straight line (b) two or more cell symbols (c) a circle with A inside (d) a circle with V inside
9. 9.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) capacitor (c) bulb (d) cell
11. 11.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) triangle against a bar (c) a circle with M inside (d) a long and a short line
12. 12.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a circle with an X in it (c) triangle against a bar (d) two or more cell symbols
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
14. 14.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) wire (c) bulb (d) battery
16. 16.Which drawing is the symbol for an LED? (a) many long-short pairs (b) a dot where wires meet (c) two equal parallel lines (d) triangle, bar and arrows
17. 17.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a plain rectangle (c) two or more cell symbols (d) a straight line
18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) cell (c) ammeter (d) capacitor
19. 19.True or false: two or more cell symbols is the symbol for a motor. (a) False (b) True
20. 20.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) switch (c) bulb (d) junction
22. 22.True or false: a circle with a cross is the symbol for a diode. (a) False (b) True
23. 23.True or false: a straight line is the symbol for a battery. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) cell (c) bulb (d) LED
25. 25.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
26. 26.Which drawing is the symbol for a cell? (a) a straight line (b) a plain rectangle (c) a circle with V inside (d) a long and a short line
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) motor (c) diode (d) junction
28. 28.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) switch (c) battery (d) diode
30. 30.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) capacitor (c) voltmeter (d) cell
31. 31.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
32. 32.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a long and a short line (c) a straight line (d) a circle with an X in it
33. 33.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
34. 34.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
35. 35.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) voltmeter (c) diode (d) resistor
37. 37.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) one tall, one short bar (c) two or more cell symbols (d) a circle with M inside
38. 38.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
39. 39.True or false: a circle with M inside is the symbol for a cell. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) wire (c) ammeter (d) bulb

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