Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 971 · 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 circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) ammeter (c) capacitor (d) battery
3. 3.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) many long-short pairs (c) a dot where wires meet (d) a circle with a cross
4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) resistor (c) bulb (d) wire
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
6. 6.✏️ 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
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) junction (c) capacitor (d) bulb
8. 8.Which drawing is the symbol for an LED? (a) a circle with A inside (b) a circle with M inside (c) a plain rectangle (d) triangle, bar and arrows
9. 9.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) motor (c) voltmeter (d) resistor
10. 10.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) bulb (c) resistor (d) wire
11. 11.True or false: a plain rectangle is the symbol for a battery. (a) False (b) True
12. 12.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
13. 13.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a plain rectangle (c) a line lifted at a gap (d) a circle with A inside
14. 14.Which drawing is the symbol for a switch? (a) a long and a short line (b) a straight line (c) a line lifted at a gap (d) one tall, one short bar
15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) junction (c) capacitor (d) bulb
16. 16.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a long and a short line (c) a plain rectangle (d) triangle, bar and arrows
17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) capacitor (c) diode (d) voltmeter
18. 18.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a straight line (c) one tall, one short bar (d) many long-short pairs
19. 19.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) wire (c) resistor (d) battery
20. 20.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) battery (c) wire (d) junction
21. 21.True or false: many long-short pairs is the symbol for a resistor. (a) False (b) True
22. 22.True or false: a dot where wires meet is the symbol for a switch. (a) False (b) True
23. 23.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) two or more cell symbols (d) a plain rectangle
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) battery (c) wire (d) bulb
25. 25.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
26. 26.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
27. 27.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
28. 28.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) motor (c) cell (d) bulb
29. 29.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) switch (c) diode (d) cell
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) junction (d) battery
31. 31.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
32. 32.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) triangle against a bar (c) a circle with a cross (d) a straight line
33. 33.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) junction (c) LED (d) ammeter
34. 34.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
35. 35.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
36. 36.True or false: a circle with M inside is the symbol for a wire. (a) False (b) True
37. 37.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) junction (c) capacitor (d) bulb
39. 39.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
40. 40.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True

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