Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 329 · 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 battery? (a) many long-short pairs (b) a circle with a cross (c) a line lifted at a gap (d) triangle, bar and arrows
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
3. 3.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) bulb (c) capacitor (d) LED
5. 5.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
6. 6.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
7. 7.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) many long-short pairs (c) a line lifted at a gap (d) a plain rectangle
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) bulb (c) voltmeter (d) switch
10. 10.Which drawing is the symbol for a wire? (a) a small empty box (b) a straight line (c) a circle with V inside (d) triangle against a bar
11. 11.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a dot where wires meet (c) many long-short pairs (d) a plain rectangle
12. 12.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) LED (c) cell (d) resistor
13. 13.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) LED (c) capacitor (d) diode
14. 14.True or false: a small empty box is the symbol for an LED. (a) False (b) True
15. 15.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
16. 16.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a long and a short line (c) a circle with a cross (d) a plain rectangle
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) LED (c) battery (d) switch
18. 18.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) voltmeter (c) motor (d) capacitor
19. 19.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a line lifted at a gap (c) triangle, bar and arrows (d) a circle with a cross
20. 20.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) ammeter (c) cell (d) switch
21. 21.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
22. 22.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a dot where wires meet (c) a circle with an X in it (d) a circle with V inside
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) diode (c) switch (d) bulb
24. 24.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
25. 25.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) one tall, one short bar (c) triangle against a bar (d) a circle with A inside
26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) resistor (c) diode (d) voltmeter
27. 27.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a long and a short line (c) triangle against a bar (d) two or more cell symbols
28. 28.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
29. 29.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
30. 30.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a small empty box (c) triangle against a bar (d) two equal parallel lines
31. 31.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
32. 32.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
33. 33.True or false: many long-short pairs is the symbol for a motor. (a) False (b) True
34. 34.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a long and a short line (c) a plain rectangle (d) a circle with M inside
35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) LED (c) cell (d) battery
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) diode (c) ammeter (d) voltmeter
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) voltmeter (c) motor (d) cell
38. 38.✏️ In a circuit diagram, which part is drawn as a straight line? (a) diode (b) resistor (c) wire (d) bulb
39. 39.True or false: a straight line is the symbol for a wire. (a) True (b) False
40. 40.True or false: a straight line is the symbol for a cell. (a) True (b) False

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