Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 366 · 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) dotted circles (c) little stars (d) straight lines
2. 2.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) switch (c) junction (d) wire
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
4. 4.Which drawing is the symbol for a bulb? (a) a circle with V inside (b) a circle with a cross (c) two equal parallel lines (d) many long-short pairs
5. 5.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
6. 6.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
7. 7.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
8. 8.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
9. 9.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a straight line (c) a plain rectangle (d) triangle against a bar
10. 10.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with V inside (c) a plain rectangle (d) a dot where wires meet
11. 11.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) diode (c) cell (d) battery
12. 12.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) battery (c) junction (d) ammeter
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) junction (c) voltmeter (d) switch
14. 14.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with V inside (c) a long and a short line (d) a circle with an X in it
15. 15.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a small empty box (c) a circle with a cross (d) two equal parallel lines
16. 16.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) resistor (c) bulb (d) battery
17. 17.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) a circle with M inside (c) two equal parallel lines (d) a small empty box
18. 18.Which drawing is the symbol for a switch? (a) a long and a short line (b) a line lifted at a gap (c) one tall, one short bar (d) a plain rectangle
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) junction (c) capacitor (d) cell
20. 20.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
21. 21.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) bulb (c) ammeter (d) motor
23. 23.True or false: a straight line is the symbol for a wire. (a) False (b) True
24. 24.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
25. 25.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a circle with a cross (c) a line lifted at a gap (d) one tall, one short bar
26. 26.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) diode (c) switch (d) motor
27. 27.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) motor (c) bulb (d) LED
29. 29.Which drawing is the symbol for an LED? (a) a circle with a cross (b) a straight line (c) a line lifted at a gap (d) triangle, bar and arrows
30. 30.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) motor (d) diode
31. 31.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
32. 32.True or false: a small empty box is the symbol for a capacitor. (a) False (b) True
33. 33.True or false: a small empty box is the symbol for a switch. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) cell (c) bulb (d) battery
35. 35.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) wire (c) LED (d) diode
37. 37.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) bulb (c) resistor (d) switch
38. 38.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a plain rectangle (c) a circle with V inside (d) triangle, bar and arrows
39. 39.Which drawing is the symbol for a junction? (a) a small empty box (b) a dot where wires meet (c) a line lifted at a gap (d) one tall, one short bar
40. 40.True or false: a circle with an X in it is the symbol for a junction. (a) False (b) True

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