Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 211 · 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.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) switch (c) voltmeter (d) motor
2. 2.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) diode (c) motor (d) junction
4. 4.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
5. 5.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a long and a short line (c) a straight line (d) a circle with A inside
6. 6.True or false: a circle with a cross is the symbol for an LED. (a) True (b) False
7. 7.True or false: a small empty box is the symbol for a switch. (a) True (b) False
8. 8.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) a small empty box (c) a circle with M inside (d) two or more cell symbols
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) switch (c) capacitor (d) motor
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) bulb (c) cell (d) battery
12. 12.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a long and a short line (c) a circle with an X in it (d) a circle with M inside
13. 13.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a circle with a cross (c) a straight line (d) a dot where wires meet
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
15. 15.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a circle with M inside (c) a long and a short line (d) triangle against a bar
16. 16.True or false: many long-short pairs is the symbol for a resistor. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) bulb (c) battery (d) ammeter
18. 18.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) resistor (c) LED (d) junction
19. 19.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) capacitor (c) LED (d) cell
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) switch (c) diode (d) cell
21. 21.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
22. 22.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) resistor (c) switch (d) battery
24. 24.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
25. 25.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) two equal parallel lines (c) many long-short pairs (d) a circle with a cross
26. 26.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) switch (c) bulb (d) capacitor
27. 27.True or false: a circle with a cross is the symbol for a voltmeter. (a) True (b) False
28. 28.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a straight line (c) many long-short pairs (d) a circle with A inside
29. 29.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
30. 30.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
31. 31.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) diode (c) cell (d) motor
33. 33.True or false: a small empty box is the symbol for a wire. (a) True (b) False
34. 34.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
35. 35.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with A inside (c) a line lifted at a gap (d) a dot where wires meet
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) bulb (c) resistor (d) cell
37. 37.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) battery (c) LED (d) wire
38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) motor (c) voltmeter (d) battery
39. 39.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
40. 40.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a long and a short line (c) a small empty box (d) a line lifted at a gap

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