Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 270 · 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: one tall, one short bar is the symbol for a cell. (a) True (b) False
2. 2.Which drawing is the symbol for a cell? (a) a long and a short line (b) many long-short pairs (c) two or more cell symbols (d) a circle with an X in it
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
4. 4.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with A inside (c) a plain rectangle (d) a small empty box
5. 5.Which drawing is the symbol for a cell? (a) many long-short pairs (b) triangle, bar and arrows (c) one tall, one short bar (d) a circle with M inside
6. 6.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) a circle with A inside (c) many long-short pairs (d) two equal parallel lines
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
8. 8.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) cell (c) battery (d) resistor
10. 10.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) switch (c) capacitor (d) LED
11. 11.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) bulb (c) junction (d) capacitor
12. 12.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) capacitor (c) wire (d) battery
13. 13.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) ammeter (c) bulb (d) cell
14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) wire (c) LED (d) motor
15. 15.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) many long-short pairs (c) two or more cell symbols (d) a circle with A inside
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) switch (d) motor
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) cell (c) bulb (d) resistor
18. 18.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) bulb (c) junction (d) diode
20. 20.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
21. 21.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a circle with a cross (c) a straight line (d) a circle with an X in it
22. 22.Which drawing is the symbol for a diode? (a) a plain rectangle (b) a circle with A inside (c) many long-short pairs (d) triangle against a bar
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) voltmeter (c) diode (d) switch
24. 24.True or false: a straight line is the symbol for a resistor. (a) False (b) True
25. 25.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
26. 26.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) wire (c) switch (d) junction
28. 28.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a line lifted at a gap (c) two or more cell symbols (d) a small empty box
29. 29.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) one tall, one short bar (c) a plain rectangle (d) many long-short pairs
30. 30.Which drawing is the symbol for an LED? (a) a straight line (b) triangle, bar and arrows (c) a circle with a cross (d) a circle with M inside
31. 31.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
32. 32.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
33. 33.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
34. 34.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a circle with M inside (c) a plain rectangle (d) a circle with an X in it
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) resistor (c) motor (d) battery
36. 36.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
37. 37.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with M inside (c) a circle with V inside (d) a straight line
38. 38.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) battery (c) ammeter (d) junction
40. 40.True or false: a long and a short line is the symbol for a battery. (a) True (b) False

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