Electronics Worksheet: Circuit Symbols

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

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