Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 570 · 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) to hide the circuit (c) symbols are heavier (d) quick and clear for all
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) junction (c) diode (d) ammeter
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) battery (c) capacitor (d) bulb
4. 4.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
6. 6.True or false: a straight line is the symbol for a switch. (a) True (b) False
7. 7.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
8. 8.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) two equal parallel lines (c) many long-short pairs (d) a circle with an X in it
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) switch (d) diode
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) junction (c) diode (d) switch
12. 12.Which drawing is the symbol for a motor? (a) a plain rectangle (b) a line lifted at a gap (c) a circle with M inside (d) two or more cell symbols
13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) bulb (c) battery (d) capacitor
14. 14.True or false: triangle, bar and arrows is the symbol for a resistor. (a) False (b) True
15. 15.Which drawing is the symbol for a diode? (a) a circle with M inside (b) triangle against a bar (c) a plain rectangle (d) a circle with an X in it
16. 16.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) triangle against a bar (c) one tall, one short bar (d) a plain rectangle
17. 17.True or false: a circle with a cross is the symbol for a resistor. (a) False (b) True
18. 18.Which drawing is the symbol for a wire? (a) a straight line (b) a dot where wires meet (c) a small empty box (d) a circle with an X in it
19. 19.Which drawing is the symbol for a battery? (a) triangle, bar and arrows (b) a plain rectangle (c) two or more cell symbols (d) one tall, one short bar
20. 20.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
21. 21.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a dot where wires meet (c) many long-short pairs (d) a line lifted at a gap
22. 22.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) resistor (c) wire (d) cell
24. 24.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a long and a short line (c) a circle with V inside (d) a circle with M inside
25. 25.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a circle with A inside (c) triangle against a bar (d) many long-short pairs
26. 26.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
27. 27.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) triangle, bar and arrows (c) a straight line (d) a circle with a cross
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) junction (c) ammeter (d) resistor
29. 29.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) bulb (c) motor (d) capacitor
30. 30.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) resistor (c) junction (d) switch
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) capacitor (c) cell (d) wire
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) battery (c) bulb (d) cell
33. 33.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) LED (c) wire (d) diode
34. 34.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a circle with a cross (c) triangle against a bar (d) one tall, one short bar
35. 35.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) diode (c) battery (d) ammeter
36. 36.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) LED (c) battery (d) bulb
37. 37.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
38. 38.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) bulb (c) capacitor (d) ammeter

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