Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 675 · 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, which part is drawn as a circle with M inside? (a) cell (b) wire (c) capacitor (d) motor
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
3. 3.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) LED (c) resistor (d) bulb
4. 4.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) resistor (c) cell (d) wire
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) motor (c) diode (d) LED
7. 7.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
8. 8.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) diode (d) resistor
11. 11.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) motor (c) ammeter (d) junction
13. 13.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a straight line (c) a circle with an X in it (d) one tall, one short bar
14. 14.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
15. 15.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
16. 16.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
17. 17.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a circle with an X in it (c) two equal parallel lines (d) two or more cell symbols
18. 18.Which drawing is the symbol for a cell? (a) a long and a short line (b) two equal parallel lines (c) two or more cell symbols (d) a small empty box
19. 19.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
20. 20.Which drawing is the symbol for a bulb? (a) a straight line (b) a circle with a cross (c) many long-short pairs (d) a dot where wires meet
21. 21.True or false: a plain rectangle is the symbol for a switch. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) junction (c) capacitor (d) bulb
23. 23.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) cell (c) motor (d) ammeter
24. 24.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a straight line (c) a circle with A inside (d) triangle against a bar
25. 25.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) bulb (c) switch (d) battery
26. 26.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a dot where wires meet (c) triangle against a bar (d) a circle with an X in it
27. 27.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) diode (c) voltmeter (d) LED
28. 28.True or false: a long and a short line is the symbol for a resistor. (a) False (b) True
29. 29.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) switch (c) bulb (d) voltmeter
31. 31.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
32. 32.True or false: triangle against a bar is the symbol for a wire. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) voltmeter (c) capacitor (d) LED
34. 34.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) resistor (c) bulb (d) cell
35. 35.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
36. 36.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) many long-short pairs (c) two equal parallel lines (d) a small empty box
37. 37.Which drawing is the symbol for an LED? (a) a circle with V inside (b) triangle, bar and arrows (c) a circle with a cross (d) two or more cell symbols
38. 38.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
39. 39.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a line lifted at a gap (c) a circle with M inside (d) a long and a short line
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) LED (c) bulb (d) diode

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