Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 404 · 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 long and a short line is the symbol for a wire. (a) False (b) True
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
3. 3.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
4. 4.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a dot where wires meet (c) a long and a short line (d) triangle against a bar
5. 5.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
6. 6.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) a circle with a cross (c) two or more cell symbols (d) a dot where wires meet
7. 7.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) ammeter (c) resistor (d) cell
9. 9.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) wire (c) junction (d) switch
11. 11.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
12. 12.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
13. 13.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) many long-short pairs (c) a circle with A inside (d) a dot where wires meet
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) diode (c) ammeter (d) battery
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) bulb (c) battery (d) motor
16. 16.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) bulb (c) capacitor (d) LED
17. 17.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a circle with V inside (c) one tall, one short bar (d) a circle with an X in it
18. 18.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
19. 19.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) capacitor (c) motor (d) cell
20. 20.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
21. 21.Which drawing is the symbol for a cell? (a) a long and a short line (b) a plain rectangle (c) a small empty box (d) two equal parallel lines
22. 22.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) triangle, bar and arrows (c) a line lifted at a gap (d) triangle against a bar
23. 23.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
24. 24.True or false: a dot where wires meet is the symbol for a diode. (a) True (b) False
25. 25.Which drawing is the symbol for a junction? (a) triangle against a bar (b) two or more cell symbols (c) a dot where wires meet (d) a circle with M inside
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) diode (c) ammeter (d) resistor
27. 27.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) diode (c) ammeter (d) junction
28. 28.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
29. 29.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) cell (c) motor (d) capacitor
31. 31.Which drawing is the symbol for a battery? (a) a circle with M inside (b) triangle against a bar (c) a plain rectangle (d) many long-short pairs
32. 32.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with M inside (c) two or more cell symbols (d) a line lifted at a gap
33. 33.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) wire (c) motor (d) cell
34. 34.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) diode (c) battery (d) junction
35. 35.True or false: triangle against a bar is the symbol for a motor. (a) False (b) True
36. 36.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
37. 37.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
38. 38.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
39. 39.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) battery (c) voltmeter (d) cell

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