Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 229 · 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.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
2. 2.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a straight line (c) two or more cell symbols (d) two equal parallel lines
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) bulb (c) voltmeter (d) switch
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
5. 5.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
6. 6.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
7. 7.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
8. 8.Which drawing is the symbol for a junction? (a) a circle with a cross (b) triangle against a bar (c) a dot where wires meet (d) triangle, bar and arrows
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) resistor (c) bulb (d) LED
10. 10.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) a straight line (c) triangle, bar and arrows (d) a circle with an X in it
11. 11.Which drawing is the symbol for a diode? (a) a long and a short line (b) many long-short pairs (c) a plain rectangle (d) triangle against a bar
12. 12.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
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: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) junction (c) resistor (d) diode
17. 17.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) junction (c) cell (d) bulb
19. 19.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a small empty box (c) triangle, bar and arrows (d) a long and a short line
20. 20.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) wire (c) LED (d) junction
21. 21.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) wire (c) motor (d) LED
22. 22.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
23. 23.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a dot where wires meet (c) a circle with a cross (d) one tall, one short bar
24. 24.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a circle with a cross (c) a straight line (d) a long and a short line
25. 25.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) wire (c) resistor (d) voltmeter
26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) resistor (c) junction (d) wire
27. 27.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) motor (c) voltmeter (d) bulb
28. 28.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) two or more cell symbols (c) two equal parallel lines (d) a long and a short line
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) LED (c) bulb (d) ammeter
30. 30.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
31. 31.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
32. 32.True or false: a circle with V inside is the symbol for a switch. (a) False (b) True
33. 33.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
34. 34.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
35. 35.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) wire (c) resistor (d) ammeter
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) cell (c) motor (d) diode
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 motor? (a) a small empty box (b) many long-short pairs (c) a circle with M inside (d) a long and a short line
40. 40.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a dot where wires meet (c) a circle with M inside (d) two or more cell symbols

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