Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 247 · 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.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
2. 2.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) junction (c) wire (d) battery
3. 3.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) diode (c) cell (d) LED
4. 4.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) bulb (c) ammeter (d) resistor
5. 5.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
6. 6.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
8. 8.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
9. 9.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) voltmeter (c) battery (d) wire
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) battery (c) bulb (d) ammeter
12. 12.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) cell (c) switch (d) wire
14. 14.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) LED (c) ammeter (d) capacitor
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) bulb (c) motor (d) switch
16. 16.Which drawing is the symbol for a resistor? (a) a straight line (b) a plain rectangle (c) many long-short pairs (d) a circle with V inside
17. 17.Which drawing is the symbol for a motor? (a) a small empty box (b) a circle with M inside (c) two or more cell symbols (d) triangle, bar and arrows
18. 18.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a circle with V inside (c) triangle, bar and arrows (d) triangle against a bar
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) resistor (c) diode (d) ammeter
20. 20.True or false: a long and a short line is the symbol for a capacitor. (a) True (b) False
21. 21.True or false: a circle with an X in it is the symbol for a wire. (a) False (b) True
22. 22.Which drawing is the symbol for a switch? (a) a circle with a cross (b) a line lifted at a gap (c) a circle with M inside (d) two or more cell symbols
23. 23.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) voltmeter (c) cell (d) resistor
24. 24.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) junction (c) ammeter (d) wire
26. 26.Which drawing is the symbol for a capacitor? (a) a small empty box (b) one tall, one short bar (c) two equal parallel lines (d) triangle against a bar
27. 27.True or false: a circle with V inside is the symbol for an ammeter. (a) True (b) False
28. 28.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
29. 29.Which drawing is the symbol for a battery? (a) a circle with V inside (b) one tall, one short bar (c) many long-short pairs (d) a circle with a cross
30. 30.True or false: a circle with M inside is the symbol for a capacitor. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) wire (c) junction (d) bulb
32. 32.Which drawing is the symbol for an LED? (a) a small empty box (b) a long and a short line (c) a circle with an X in it (d) triangle, bar and arrows
33. 33.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) one tall, one short bar (c) a circle with M inside (d) a dot where wires meet
34. 34.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
35. 35.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a plain rectangle (c) a dot where wires meet (d) triangle against a bar
36. 36.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
37. 37.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a circle with M inside (c) triangle against a bar (d) a small empty box
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) bulb (c) voltmeter (d) junction
39. 39.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
40. 40.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False

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