Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 804 · 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.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
4. 4.True or false: a circle with V inside is the symbol for a motor. (a) False (b) True
5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) ammeter (c) motor (d) resistor
6. 6.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
7. 7.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) two equal parallel lines (c) a straight line (d) many long-short pairs
8. 8.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
9. 9.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) many long-short pairs (d) two or more cell symbols
10. 10.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) diode (c) bulb (d) LED
11. 11.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a dot where wires meet (c) many long-short pairs (d) a line lifted at a gap
12. 12.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) diode (c) LED (d) junction
13. 13.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
14. 14.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a dot where wires meet (c) a plain rectangle (d) a circle with V inside
15. 15.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) a circle with an X in it (c) triangle against a bar (d) two equal parallel lines
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) bulb (c) capacitor (d) diode
17. 17.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True
18. 18.True or false: a straight line is the symbol for a wire. (a) False (b) True
19. 19.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) wire (c) ammeter (d) junction
21. 21.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with A inside (c) a circle with V inside (d) a small empty box
22. 22.True or false: many long-short pairs is the symbol for an LED. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) wire (c) junction (d) LED
24. 24.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) wire (c) resistor (d) cell
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) cell (b) bulb (c) voltmeter (d) LED
27. 27.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a line lifted at a gap (c) one tall, one short bar (d) a circle with V inside
28. 28.True or false: a circle with a cross is the symbol for a wire. (a) False (b) True
29. 29.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a circle with an X in it (c) two equal parallel lines (d) a dot where wires meet
30. 30.True or false: a plain rectangle is the symbol for a switch. (a) False (b) True
31. 31.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
32. 32.Which drawing is the symbol for an LED? (a) a small empty box (b) a long and a short line (c) triangle, bar and arrows (d) two or more cell symbols
33. 33.Which drawing is the symbol for a resistor? (a) a small empty box (b) triangle, bar and arrows (c) a circle with a cross (d) one tall, one short bar
34. 34.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
35. 35.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with a cross (c) triangle against a bar (d) one tall, one short bar
36. 36.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) switch (c) battery (d) wire
37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) junction (c) cell (d) switch
38. 38.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
39. 39.True or false: one tall, one short bar is the symbol for an LED. (a) False (b) True
40. 40.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a circle with an X in it (c) one tall, one short bar (d) a circle with V inside

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