Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 110 · 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 straight line is the symbol for a bulb. (a) True (b) False
2. 2.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) cell (c) ammeter (d) switch
3. 3.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) diode (c) bulb (d) resistor
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) junction (c) LED (d) bulb
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) bulb (c) voltmeter (d) battery
7. 7.Which drawing is the symbol for a wire? (a) a straight line (b) a small empty box (c) a circle with A inside (d) a line lifted at a gap
8. 8.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
9. 9.Which drawing is the symbol for an LED? (a) a circle with A inside (b) two equal parallel lines (c) triangle, bar and arrows (d) a long and a short line
10. 10.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
11. 11.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a plain rectangle (c) a dot where wires meet (d) a straight line
12. 12.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
13. 13.True or false: a plain rectangle is the symbol for a cell. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) battery (c) LED (d) switch
15. 15.True or false: a straight line is the symbol for an LED. (a) True (b) False
16. 16.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a circle with M inside (c) a plain rectangle (d) many long-short pairs
17. 17.True or false: a circle with V inside is the symbol for a junction. (a) False (b) True
18. 18.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a straight line (c) a circle with M inside (d) a dot where wires meet
19. 19.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) two equal parallel lines (c) many long-short pairs (d) a plain rectangle
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) bulb (c) junction (d) wire
21. 21.Which drawing is the symbol for a cell? (a) a long and a short line (b) triangle against a bar (c) a dot where wires meet (d) a circle with A inside
22. 22.Which drawing is the symbol for a bulb? (a) many long-short pairs (b) a circle with a cross (c) triangle against a bar (d) one tall, one short bar
23. 23.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
24. 24.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
25. 25.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) a small empty box (c) a circle with a cross (d) two equal parallel lines
26. 26.True or false: a circle with a cross is the symbol for a cell. (a) False (b) True
27. 27.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
28. 28.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) resistor (c) switch (d) voltmeter
30. 30.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
31. 31.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
32. 32.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) junction (c) resistor (d) wire
34. 34.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
35. 35.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) a dot where wires meet (c) a circle with V inside (d) a long and a short line
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 V inside? (a) capacitor (b) voltmeter (c) ammeter (d) bulb
38. 38.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) battery (c) capacitor (d) motor
39. 39.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) junction (c) ammeter (d) switch
40. 40.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) bulb (c) junction (d) wire

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