Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 543 · 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 a cross? (a) bulb (b) ammeter (c) resistor (d) switch
2. 2.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) battery (c) wire (d) cell
3. 3.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
4. 4.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a plain rectangle (c) a circle with an X in it (d) one tall, one short bar
5. 5.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a circle with M inside (c) two or more cell symbols (d) a dot where wires meet
6. 6.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
7. 7.True or false: triangle, bar and arrows is the symbol for a resistor. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) cell (c) capacitor (d) voltmeter
9. 9.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) bulb (c) resistor (d) battery
10. 10.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) motor (c) bulb (d) battery
11. 11.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) triangle, bar and arrows (c) a dot where wires meet (d) a circle with M inside
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) cell (c) resistor (d) junction
13. 13.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a straight line (c) two or more cell symbols (d) a long and a short line
14. 14.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
15. 15.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
16. 16.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
17. 17.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
18. 18.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) many long-short pairs (c) a circle with a cross (d) a long and a short line
19. 19.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) two or more cell symbols (c) a circle with V inside (d) one tall, one short bar
20. 20.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) a dot where wires meet (c) a straight line (d) a circle with V inside
21. 21.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) cell (c) LED (d) wire
22. 22.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) resistor (c) bulb (d) cell
24. 24.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) LED (c) resistor (d) ammeter
25. 25.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) LED (b) diode (c) bulb (d) switch
27. 27.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) cell (c) capacitor (d) switch
29. 29.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
30. 30.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a circle with an X in it (c) many long-short pairs (d) a circle with V inside
31. 31.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
32. 32.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) two equal parallel lines (c) a circle with M inside (d) a circle with a cross
33. 33.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with M inside (c) a straight line (d) triangle against a bar
34. 34.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
35. 35.True or false: a small empty box is the symbol for a diode. (a) False (b) True
36. 36.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) bulb (c) cell (d) ammeter
38. 38.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) resistor (c) battery (d) wire
39. 39.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) motor (c) battery (d) resistor

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