Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 934 · 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 M inside? (a) cell (b) motor (c) diode (d) LED
2. 2.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) two equal parallel lines (c) a straight line (d) a circle with an X in it
3. 3.True or false: a line lifted at a gap is the symbol for a bulb. (a) True (b) False
4. 4.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) little stars (d) wavy lines
6. 6.True or false: two equal parallel lines is the symbol for a junction. (a) False (b) True
7. 7.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
8. 8.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
9. 9.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
10. 10.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) a dot where wires meet (c) one tall, one short bar (d) a circle with M inside
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) switch (c) wire (d) resistor
12. 12.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) triangle, bar and arrows (c) a small empty box (d) a line lifted at a gap
13. 13.Which drawing is the symbol for a wire? (a) a small empty box (b) a dot where wires meet (c) a straight line (d) two or more cell symbols
14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) LED (c) resistor (d) junction
15. 15.Which drawing is the symbol for a diode? (a) a circle with a cross (b) a circle with V inside (c) a circle with A inside (d) triangle against a bar
16. 16.True or false: a straight line is the symbol for a wire. (a) False (b) True
17. 17.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
19. 19.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a circle with a cross (c) many long-short pairs (d) a small empty box
20. 20.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) cell (c) bulb (d) voltmeter
22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) motor (c) cell (d) wire
23. 23.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a plain rectangle (c) many long-short pairs (d) a circle with M inside
24. 24.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) junction (c) bulb (d) ammeter
26. 26.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) a long and a short line (c) a circle with A inside (d) many long-short pairs
27. 27.Which drawing is the symbol for a cell? (a) two equal parallel lines (b) one tall, one short bar (c) a circle with A inside (d) a circle with a cross
28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) capacitor (c) ammeter (d) voltmeter
29. 29.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
30. 30.True or false: two or more cell symbols is the symbol for a diode. (a) False (b) True
31. 31.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
32. 32.Which drawing is the symbol for a voltmeter? (a) a long and a short line (b) two or more cell symbols (c) a circle with V inside (d) a small empty box
33. 33.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) junction (c) resistor (d) battery
35. 35.True or false: a line lifted at a gap is the symbol for an ammeter. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) diode (c) wire (d) bulb
37. 37.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) wire (c) resistor (d) ammeter
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) ammeter (c) junction (d) LED
39. 39.Which drawing is the symbol for an LED? (a) many long-short pairs (b) a circle with an X in it (c) a plain rectangle (d) triangle, bar and arrows
40. 40.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) wire (c) battery (d) capacitor

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