Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 900 · 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) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
2. 2.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
3. 3.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with an X in it (c) a plain rectangle (d) a circle with A inside
4. 4.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False
5. 5.True or false: a circle with A inside is the symbol for a bulb. (a) False (b) True
6. 6.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a circle with M inside (c) triangle against a bar (d) a line lifted at a gap
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) wire (c) capacitor (d) resistor
8. 8.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
9. 9.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) bulb (b) resistor (c) diode (d) battery
11. 11.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
12. 12.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a straight line (c) a line lifted at a gap (d) a small empty box
13. 13.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) dotted circles (d) wavy lines
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) bulb (c) junction (d) switch
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) motor (c) wire (d) switch
16. 16.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
17. 17.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
18. 18.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a long and a short line (c) a straight line (d) triangle, bar and arrows
19. 19.Which drawing is the symbol for a motor? (a) a circle with A inside (b) two equal parallel lines (c) triangle, bar and arrows (d) a circle with M inside
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) battery (c) junction (d) diode
21. 21.Which drawing is the symbol for a diode? (a) a circle with V inside (b) one tall, one short bar (c) triangle against a bar (d) two or more cell symbols
22. 22.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
23. 23.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) diode (c) resistor (d) battery
25. 25.Which drawing is the symbol for a battery? (a) a circle with A inside (b) a straight line (c) a small empty box (d) two or more cell symbols
26. 26.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a circle with M inside (c) one tall, one short bar (d) triangle, bar and arrows
27. 27.True or false: a small empty box is the symbol for a cell. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) battery (c) motor (d) ammeter
29. 29.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
30. 30.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) battery (c) capacitor (d) LED
32. 32.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
33. 33.True or false: a dot where wires meet is the symbol for a wire. (a) True (b) False
34. 34.True or false: a straight line is the symbol for a wire. (a) False (b) True
35. 35.True or false: a line lifted at a gap is the symbol for an ammeter. (a) True (b) False
36. 36.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a line lifted at a gap (c) two equal parallel lines (d) a straight line
37. 37.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
38. 38.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with V inside (c) a straight line (d) a circle with a cross
39. 39.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) voltmeter (c) junction (d) cell
40. 40.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) many long-short pairs (c) a circle with A inside (d) a long and a short line

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