Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 45 · 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 a voltmeter? (a) a line lifted at a gap (b) a circle with a cross (c) a circle with V inside (d) a dot where wires meet
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
3. 3.Which drawing is the symbol for a wire? (a) a circle with V inside (b) a circle with an X in it (c) triangle, bar and arrows (d) a straight line
4. 4.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a long and a short line (c) triangle against a bar (d) triangle, bar and arrows
5. 5.True or false: a straight line is the symbol for a wire. (a) True (b) False
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
7. 7.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) wire (c) diode (d) switch
9. 9.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) diode (c) resistor (d) cell
10. 10.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
11. 11.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) voltmeter (c) cell (d) battery
13. 13.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a small empty box (c) a circle with M inside (d) a circle with a cross
14. 14.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) a circle with V inside (c) triangle, bar and arrows (d) a straight line
15. 15.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) a circle with A inside (c) a long and a short line (d) a small empty box
16. 16.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) cell (c) capacitor (d) motor
17. 17.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) battery (c) bulb (d) LED
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) battery (c) wire (d) cell
19. 19.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a line lifted at a gap (c) a circle with A inside (d) one tall, one short bar
20. 20.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) triangle against a bar (d) a circle with an X in it
21. 21.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
22. 22.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
23. 23.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a plain rectangle (c) a long and a short line (d) many long-short pairs
24. 24.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) LED (c) switch (d) resistor
26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) motor (c) capacitor (d) junction
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) LED (c) wire (d) battery
28. 28.True or false: a plain rectangle is the symbol for a wire. (a) True (b) False
29. 29.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) bulb (c) junction (d) resistor
30. 30.True or false: a dot where wires meet is the symbol for a motor. (a) True (b) False
31. 31.True or false: triangle, bar and arrows is the symbol for a voltmeter. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) capacitor (c) resistor (d) diode
33. 33.True or false: many long-short pairs is the symbol for an LED. (a) True (b) False
34. 34.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True
35. 35.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
36. 36.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) battery (c) wire (d) resistor
38. 38.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
39. 39.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a small empty box (c) two or more cell symbols (d) triangle, bar and arrows
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) diode (c) bulb (d) voltmeter

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