Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 80 · 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.True or false: one tall, one short bar is the symbol for a switch. (a) False (b) True
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) ammeter (c) capacitor (d) junction
3. 3.Which drawing is the symbol for a diode? (a) a dot where wires meet (b) a plain rectangle (c) triangle against a bar (d) a straight line
4. 4.True or false: a small empty box is the symbol for a switch. (a) True (b) False
5. 5.True or false: two equal parallel lines is the symbol for a voltmeter. (a) False (b) True
6. 6.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) switch (c) LED (d) wire
8. 8.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) one tall, one short bar (c) a long and a short line (d) a plain rectangle
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
10. 10.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a dot where wires meet (c) triangle, bar and arrows (d) one tall, one short bar
11. 11.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
12. 12.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) one tall, one short bar (c) a dot where wires meet (d) a circle with A inside
13. 13.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) LED (c) motor (d) switch
14. 14.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) bulb (c) junction (d) LED
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) resistor (c) bulb (d) battery
17. 17.True or false: two equal parallel lines is the symbol for a junction. (a) True (b) False
18. 18.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a circle with an X in it (c) a circle with V inside (d) a long and a short line
19. 19.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) ammeter (d) voltmeter
21. 21.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) a circle with A inside (c) a long and a short line (d) two equal parallel lines
22. 22.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a long and a short line (c) two or more cell symbols (d) a circle with V inside
23. 23.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with a cross (c) one tall, one short bar (d) a circle with A inside
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) diode (c) voltmeter (d) ammeter
25. 25.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) motor (c) battery (d) junction
26. 26.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
27. 27.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
28. 28.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) junction (b) cell (c) bulb (d) LED
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) cell (c) switch (d) voltmeter
31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) voltmeter (b) cell (c) diode (d) resistor
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) battery (c) ammeter (d) cell
33. 33.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
34. 34.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) battery (c) voltmeter (d) LED
36. 36.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
37. 37.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a straight line (c) a circle with a cross (d) triangle, bar and arrows
38. 38.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a line lifted at a gap (c) a circle with M inside (d) triangle, bar and arrows
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
40. 40.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a circle with M inside (c) a line lifted at a gap (d) many long-short pairs

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