Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 665 · 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) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
2. 2.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a plain rectangle (c) a circle with V inside (d) one tall, one short bar
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) wire (c) switch (d) bulb
4. 4.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) switch (b) cell (c) resistor (d) battery
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) both lines (d) the shorter line
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) switch (c) bulb (d) LED
7. 7.True or false: triangle, bar and arrows is the symbol for a cell. (a) False (b) True
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
9. 9.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) bulb (c) junction (d) cell
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) motor (c) diode (d) bulb
11. 11.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
12. 12.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) a circle with a cross (c) two equal parallel lines (d) one tall, one short bar
13. 13.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
14. 14.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
15. 15.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) two equal parallel lines (c) a line lifted at a gap (d) a circle with M inside
16. 16.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) battery (c) cell (d) capacitor
17. 17.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a circle with V inside (c) a circle with A inside (d) triangle against a bar
18. 18.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a long and a short line (c) triangle, bar and arrows (d) a straight line
19. 19.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) diode (c) junction (d) voltmeter
20. 20.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) voltmeter (c) cell (d) wire
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) cell (c) LED (d) voltmeter
22. 22.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with M inside (c) a dot where wires meet (d) triangle against a bar
23. 23.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
24. 24.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
25. 25.True or false: one tall, one short bar is the symbol for a capacitor. (a) False (b) True
26. 26.True or false: a small empty box is the symbol for an ammeter. (a) False (b) True
27. 27.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) bulb (c) switch (d) battery
29. 29.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) motor (c) capacitor (d) resistor
30. 30.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
31. 31.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) triangle, bar and arrows (c) a line lifted at a gap (d) one tall, one short bar
32. 32.Which drawing is the symbol for a junction? (a) a plain rectangle (b) triangle against a bar (c) many long-short pairs (d) a dot where wires meet
33. 33.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) bulb (c) switch (d) wire
34. 34.True or false: a small empty box is the symbol for a battery. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) cell (c) ammeter (d) junction
36. 36.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
37. 37.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a long and a short line (c) a small empty box (d) one tall, one short bar
38. 38.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
39. 39.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
40. 40.True or false: a circle with V inside is the symbol for a capacitor. (a) True (b) False

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