Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 266 · 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 circle with V inside? (a) wire (b) LED (c) ammeter (d) voltmeter
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
3. 3.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) ammeter (c) diode (d) battery
5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) resistor (c) voltmeter (d) ammeter
6. 6.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
7. 7.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) a circle with M inside (c) one tall, one short bar (d) a circle with V inside
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) ammeter (c) junction (d) motor
9. 9.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) a straight line (c) many long-short pairs (d) two equal parallel lines
10. 10.Which drawing is the symbol for a wire? (a) triangle, bar and arrows (b) a circle with V inside (c) a straight line (d) a plain rectangle
11. 11.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) two equal parallel lines (c) a circle with a cross (d) a circle with V inside
12. 12.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) ammeter (c) motor (d) cell
14. 14.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) bulb (c) capacitor (d) LED
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
16. 16.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) battery (c) capacitor (d) junction
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) motor (c) bulb (d) battery
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) motor (c) switch (d) LED
20. 20.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
21. 21.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
22. 22.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with V inside (c) a line lifted at a gap (d) a small empty box
23. 23.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
24. 24.True or false: a circle with A inside is the symbol for a capacitor. (a) True (b) False
25. 25.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
26. 26.Which drawing is the symbol for an LED? (a) a circle with a cross (b) a circle with V inside (c) two or more cell symbols (d) triangle, bar and arrows
27. 27.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a small empty box (c) triangle, bar and arrows (d) a dot where wires meet
28. 28.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
29. 29.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) wire (c) cell (d) capacitor
31. 31.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
32. 32.Which drawing is the symbol for a cell? (a) a long and a short line (b) two equal parallel lines (c) a plain rectangle (d) a circle with a cross
33. 33.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
34. 34.True or false: a small empty box is the symbol for an LED. (a) True (b) False
35. 35.Which drawing is the symbol for a resistor? (a) a straight line (b) a plain rectangle (c) a circle with M inside (d) a circle with A inside
36. 36.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with a cross (c) a circle with an X in it (d) a circle with A inside
37. 37.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) battery (c) diode (d) resistor
39. 39.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
40. 40.True or false: a circle with M inside is the symbol for a resistor. (a) False (b) True

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