Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 615 · 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 diode? (a) a small empty box (b) two or more cell symbols (c) a long and a short line (d) triangle against a bar
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) resistor (c) switch (d) ammeter
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
4. 4.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
5. 5.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
6. 6.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a straight line (c) a line lifted at a gap (d) a long and a short line
7. 7.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
8. 8.True or false: many long-short pairs is the symbol for a motor. (a) True (b) False
9. 9.True or false: a straight line is the symbol for a wire. (a) False (b) True
10. 10.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
11. 11.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) triangle, bar and arrows (c) a circle with an X in it (d) one tall, one short bar
12. 12.True or false: a small empty box is the symbol for a motor. (a) False (b) True
13. 13.True or false: a dot where wires meet is the symbol for a motor. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) battery (c) diode (d) wire
15. 15.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with M inside (c) a circle with a cross (d) a plain rectangle
16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) resistor (c) switch (d) junction
17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) capacitor (c) LED (d) diode
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) voltmeter (c) cell (d) ammeter
19. 19.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) LED (c) resistor (d) cell
20. 20.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) two or more cell symbols (c) a long and a short line (d) two equal parallel lines
21. 21.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
22. 22.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a straight line (c) triangle, bar and arrows (d) a circle with a cross
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) motor (c) diode (d) junction
24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) resistor (c) motor (d) cell
25. 25.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
26. 26.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
27. 27.True or false: a circle with an X in it is the symbol for a battery. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) resistor (c) switch (d) ammeter
29. 29.True or false: a plain rectangle is the symbol for a voltmeter. (a) True (b) False
30. 30.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
31. 31.True or false: a plain rectangle is the symbol for a wire. (a) True (b) False
32. 32.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with A inside (c) triangle against a bar (d) a circle with V inside
33. 33.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) bulb (c) wire (d) battery
34. 34.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a small empty box (c) a circle with a cross (d) one tall, one short bar
35. 35.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
36. 36.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
37. 37.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
38. 38.Which drawing is the symbol for a battery? (a) a straight line (b) many long-short pairs (c) a circle with V inside (d) a long and a short line
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) wire (b) voltmeter (c) ammeter (d) LED
40. 40.Which drawing is the symbol for a resistor? (a) a small empty box (b) two or more cell symbols (c) two equal parallel lines (d) a circle with A inside

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