Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 492 · 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, which part is drawn as a dot where wires meet? (a) cell (b) bulb (c) wire (d) junction
2. 2.Which drawing is the symbol for a junction? (a) a long and a short line (b) a dot where wires meet (c) a circle with V inside (d) a circle with a cross
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) ammeter (c) diode (d) switch
4. 4.Which drawing is the symbol for a capacitor? (a) a straight line (b) two equal parallel lines (c) a circle with an X in it (d) one tall, one short bar
5. 5.Which drawing is the symbol for a diode? (a) a straight line (b) two or more cell symbols (c) a circle with M inside (d) triangle against a bar
6. 6.Which drawing is the symbol for a switch? (a) triangle against a bar (b) triangle, bar and arrows (c) two equal parallel lines (d) a line lifted at a gap
7. 7.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
8. 8.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a line lifted at a gap (c) triangle, bar and arrows (d) a circle with A inside
9. 9.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
10. 10.Which drawing is the symbol for a cell? (a) a long and a short line (b) a straight line (c) triangle against a bar (d) triangle, bar and arrows
11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) battery (c) diode (d) wire
12. 12.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
13. 13.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
14. 14.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a line lifted at a gap (c) a circle with A inside (d) a circle with a cross
15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) junction (c) cell (d) diode
16. 16.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) switch (c) cell (d) junction
17. 17.True or false: two equal parallel lines is the symbol for a bulb. (a) False (b) True
18. 18.True or false: a straight line is the symbol for a switch. (a) True (b) False
19. 19.True or false: a straight line is the symbol for an LED. (a) False (b) True
20. 20.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) dotted circles (d) straight lines
21. 21.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
22. 22.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
23. 23.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
24. 24.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) ammeter (c) cell (d) voltmeter
26. 26.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) triangle, bar and arrows (c) many long-short pairs (d) a circle with V inside
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) motor (c) switch (d) bulb
28. 28.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) triangle, bar and arrows (c) a dot where wires meet (d) triangle against a bar
29. 29.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) two or more cell symbols (c) a dot where wires meet (d) triangle, bar and arrows
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) ammeter (c) bulb (d) cell
31. 31.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a straight line (c) a small empty box (d) a line lifted at a gap
32. 32.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle against a bar (c) a circle with M inside (d) two equal parallel lines
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) motor (d) switch
34. 34.True or false: triangle, bar and arrows is the symbol for a resistor. (a) True (b) False
35. 35.True or false: a circle with A inside is the symbol for a wire. (a) False (b) True
36. 36.Which drawing is the symbol for a motor? (a) a straight line (b) a circle with V inside (c) a circle with M inside (d) a long and a short line
37. 37.Which drawing is the symbol for a battery? (a) a straight line (b) many long-short pairs (c) triangle against a bar (d) two equal parallel lines
38. 38.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) LED (c) motor (d) switch
40. 40.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True

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