Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 113 · 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 circle with V inside is the symbol for a voltmeter. (a) False (b) True
2. 2.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
3. 3.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) resistor (c) junction (d) ammeter
5. 5.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) a circle with M inside (c) two or more cell symbols (d) two equal parallel lines
6. 6.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) switch (c) resistor (d) voltmeter
7. 7.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
8. 8.Which drawing is the symbol for a wire? (a) a straight line (b) a line lifted at a gap (c) a dot where wires meet (d) a circle with an X in it
9. 9.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a line lifted at a gap (c) many long-short pairs (d) one tall, one short bar
10. 10.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
12. 12.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) triangle against a bar (c) two or more cell symbols (d) two equal parallel lines
13. 13.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
14. 14.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
15. 15.True or false: a straight line is the symbol for a capacitor. (a) True (b) False
16. 16.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) voltmeter (c) battery (d) wire
18. 18.Which drawing is the symbol for a motor? (a) a small empty box (b) two or more cell symbols (c) a plain rectangle (d) a circle with M inside
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) capacitor (c) bulb (d) junction
20. 20.True or false: a circle with an X in it is the symbol for a switch. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) LED (c) battery (d) motor
22. 22.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) switch (c) bulb (d) diode
24. 24.True or false: many long-short pairs is the symbol for a voltmeter. (a) True (b) False
25. 25.True or false: a small empty box is the symbol for an LED. (a) True (b) False
26. 26.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with a cross (c) a circle with M inside (d) one tall, one short bar
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) motor (c) LED (d) ammeter
28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) cell (c) resistor (d) bulb
29. 29.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) resistor (c) diode (d) capacitor
30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) wire (c) bulb (d) LED
31. 31.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) one tall, one short bar (c) a small empty box (d) a circle with M inside
32. 32.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a small empty box (c) many long-short pairs (d) a circle with A inside
33. 33.Which drawing is the symbol for a cell? (a) triangle against a bar (b) two equal parallel lines (c) many long-short pairs (d) a long and a short line
34. 34.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
35. 35.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a plain rectangle (c) a circle with an X in it (d) two or more cell symbols
36. 36.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) voltmeter (c) battery (d) motor
38. 38.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
39. 39.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
40. 40.True or false: two equal parallel lines is the symbol for a resistor. (a) False (b) True

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