Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 71 · 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) straight lines (b) wavy lines (c) little stars (d) dotted circles
2. 2.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) a small empty box (c) many long-short pairs (d) a circle with A inside
3. 3.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) resistor (c) capacitor (d) voltmeter
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) LED (b) ammeter (c) bulb (d) battery
5. 5.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
6. 6.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
7. 7.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
8. 8.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) many long-short pairs (c) one tall, one short bar (d) two equal parallel lines
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.True or false: a small empty box is the symbol for a cell. (a) False (b) True
11. 11.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a plain rectangle (c) a small empty box (d) two equal parallel lines
12. 12.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a circle with V inside (c) triangle, bar and arrows (d) two equal parallel lines
13. 13.True or false: a straight line is the symbol for an LED. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) wire (d) voltmeter
15. 15.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
16. 16.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a circle with M inside (c) one tall, one short bar (d) many long-short pairs
17. 17.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
18. 18.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
19. 19.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a dot where wires meet (c) triangle, bar and arrows (d) a line lifted at a gap
20. 20.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) diode (c) switch (d) LED
22. 22.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) resistor (c) bulb (d) motor
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) ammeter (c) resistor (d) switch
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) LED (c) diode (d) cell
25. 25.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a circle with M inside (c) one tall, one short bar (d) a dot where wires meet
26. 26.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with A inside (c) many long-short pairs (d) two equal parallel lines
27. 27.True or false: a straight line is the symbol for a wire. (a) False (b) True
28. 28.True or false: a dot where wires meet is the symbol for a resistor. (a) True (b) False
29. 29.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
30. 30.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
31. 31.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) junction (c) switch (d) ammeter
33. 33.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) motor (c) battery (d) resistor
35. 35.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
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 a cross? (a) switch (b) voltmeter (c) junction (d) bulb
38. 38.True or false: a circle with A inside is the symbol for a capacitor. (a) False (b) True
39. 39.Which drawing is the symbol for a voltmeter? (a) a circle with an X in it (b) a circle with A inside (c) a circle with V inside (d) a long and a short line
40. 40.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a straight line (c) a circle with a cross (d) two equal parallel lines

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