Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 318 · 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, wires are usually drawn as … (a) wavy lines (b) straight lines (c) little stars (d) dotted circles
2. 2.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
3. 3.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) cell (c) battery (d) wire
5. 5.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) LED (c) motor (d) cell
7. 7.True or false: two or more cell symbols is the symbol for an LED. (a) False (b) True
8. 8.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
9. 9.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
10. 10.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a dot where wires meet (c) one tall, one short bar (d) a circle with A inside
11. 11.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a dot where wires meet (c) a circle with M inside (d) one tall, one short bar
12. 12.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a long and a short line (c) a small empty box (d) a dot where wires meet
13. 13.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
14. 14.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
15. 15.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
16. 16.Which drawing is the symbol for a resistor? (a) a long and a short line (b) many long-short pairs (c) a circle with V inside (d) a plain rectangle
17. 17.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) many long-short pairs (c) two equal parallel lines (d) triangle against a bar
18. 18.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) bulb (c) LED (d) capacitor
19. 19.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) LED (c) wire (d) junction
20. 20.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) battery (c) wire (d) cell
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) cell (c) ammeter (d) diode
23. 23.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) bulb (c) switch (d) battery
24. 24.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
25. 25.Which drawing is the symbol for a motor? (a) a circle with M inside (b) two equal parallel lines (c) a line lifted at a gap (d) two or more cell symbols
26. 26.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) LED (b) cell (c) bulb (d) capacitor
28. 28.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a long and a short line (c) a straight line (d) a dot where wires meet
29. 29.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a line lifted at a gap (c) a long and a short line (d) a plain rectangle
30. 30.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) many long-short pairs (c) a circle with V inside (d) a straight line
31. 31.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) motor (c) wire (d) voltmeter
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) resistor (c) ammeter (d) wire
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) motor (c) battery (d) LED
35. 35.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) triangle, bar and arrows (c) a small empty box (d) a line lifted at a gap
36. 36.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) motor (c) ammeter (d) bulb
38. 38.True or false: a line lifted at a gap is the symbol for a wire. (a) False (b) True
39. 39.Which drawing is the symbol for a battery? (a) a small empty box (b) a circle with a cross (c) triangle against a bar (d) many long-short pairs
40. 40.True or false: a circle with V inside is the symbol for a switch. (a) False (b) True

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids