Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 455 · 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 circle with V inside? (a) switch (b) bulb (c) battery (d) voltmeter
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) battery (c) LED (d) capacitor
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) wire (b) bulb (c) junction (d) diode
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) capacitor (c) ammeter (d) switch
7. 7.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) True (b) False
8. 8.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) battery (c) diode (d) switch
10. 10.True or false: one tall, one short bar 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 circle with A inside (c) a plain rectangle (d) triangle, bar and arrows
12. 12.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) voltmeter (d) LED
14. 14.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle, bar and arrows (c) a circle with A inside (d) a dot where wires meet
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) junction (c) battery (d) capacitor
16. 16.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
17. 17.Which drawing is the symbol for a wire? (a) a long and a short line (b) a circle with an X in it (c) a straight line (d) many long-short pairs
18. 18.True or false: a straight line is the symbol for a capacitor. (a) False (b) True
19. 19.True or false: a straight line is the symbol for a diode. (a) True (b) False
20. 20.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
21. 21.True or false: a circle with V inside is the symbol for an LED. (a) False (b) True
22. 22.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) a circle with V inside (c) a plain rectangle (d) a circle with a cross
23. 23.True or false: two or more cell symbols is the symbol for an ammeter. (a) True (b) False
24. 24.✏️ 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
25. 25.True or false: a circle with a cross is the symbol for an LED. (a) False (b) True
26. 26.True or false: a straight line is the symbol for an ammeter. (a) False (b) True
27. 27.Which drawing is the symbol for a diode? (a) a circle with M inside (b) a long and a short line (c) a circle with A inside (d) triangle against a bar
28. 28.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) triangle against a bar (c) a long and a short line (d) two or more cell symbols
29. 29.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) two equal parallel lines (c) a circle with M inside (d) a small empty box
30. 30.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) a circle with an X in it (c) two equal parallel lines (d) a line lifted at a gap
31. 31.Which drawing is the symbol for a cell? (a) a straight line (b) triangle against a bar (c) many long-short pairs (d) a long and a short line
32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) wire (c) cell (d) battery
33. 33.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) LED (c) cell (d) ammeter
35. 35.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) many long-short pairs (d) a dot where wires meet
36. 36.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) switch (b) motor (c) resistor (d) LED
37. 37.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
38. 38.True or false: one tall, one short bar is the symbol for a junction. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) ammeter (d) junction
40. 40.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) two equal parallel lines (c) a circle with a cross (d) a plain rectangle

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