Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 226 · 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.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a straight line (c) one tall, one short bar (d) a long and a short line
2. 2.True or false: a straight line is the symbol for a wire. (a) True (b) False
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
4. 4.Which drawing is the symbol for a bulb? (a) a straight line (b) a dot where wires meet (c) a circle with an X in it (d) a circle with V inside
5. 5.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) battery (c) switch (d) junction
7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) wire (c) switch (d) bulb
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
9. 9.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a dot where wires meet (c) one tall, one short bar (d) a line lifted at a gap
10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) capacitor (c) LED (d) motor
11. 11.Which drawing is the symbol for an ammeter? (a) a small empty box (b) a circle with A inside (c) two equal parallel lines (d) two or more cell symbols
12. 12.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) LED (c) diode (d) motor
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) switch (c) capacitor (d) cell
15. 15.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) battery (c) diode (d) wire
16. 16.Which drawing is the symbol for a battery? (a) a plain rectangle (b) triangle against a bar (c) a dot where wires meet (d) two or more cell symbols
17. 17.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) wire (c) cell (d) diode
18. 18.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a plain rectangle (c) a dot where wires meet (d) a circle with V inside
19. 19.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) one tall, one short bar (c) a line lifted at a gap (d) triangle, bar and arrows
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) battery (b) motor (c) voltmeter (d) capacitor
21. 21.Which drawing is the symbol for a motor? (a) many long-short pairs (b) two equal parallel lines (c) a circle with M inside (d) a plain rectangle
22. 22.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a circle with V inside (c) a plain rectangle (d) a long and a short line
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) battery (c) bulb (d) switch
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) wire (c) switch (d) bulb
25. 25.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
26. 26.True or false: a small empty box is the symbol for an ammeter. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) LED (c) capacitor (d) ammeter
28. 28.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
29. 29.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
30. 30.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a plain rectangle (c) triangle, bar and arrows (d) two equal parallel lines
31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) voltmeter (c) resistor (d) capacitor
32. 32.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) voltmeter (c) cell (d) LED
34. 34.Which drawing is the symbol for a wire? (a) a small empty box (b) a straight line (c) a circle with A inside (d) triangle against a bar
35. 35.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
36. 36.True or false: a circle with an X in it is the symbol for a capacitor. (a) False (b) True
37. 37.Which drawing is the symbol for a switch? (a) triangle against a bar (b) triangle, bar and arrows (c) a line lifted at a gap (d) many long-short pairs
38. 38.True or false: a straight line is the symbol for a junction. (a) False (b) True
39. 39.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) a small empty box (c) triangle against a bar (d) a long and a short line
40. 40.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) a line lifted at a gap (c) a circle with a cross (d) triangle, bar and arrows

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