Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 308 · 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) to make it colourful (c) to hide the circuit (d) quick and clear for all
2. 2.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) bulb (c) switch (d) diode
3. 3.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
4. 4.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a plain rectangle (c) a circle with V inside (d) a circle with an X in it
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
6. 6.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) cell (c) ammeter (d) resistor
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) ammeter (c) voltmeter (d) wire
8. 8.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with an X in it (c) a circle with a cross (d) one tall, one short bar
9. 9.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) ammeter (d) wire
11. 11.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) resistor (b) motor (c) battery (d) LED
12. 12.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) a circle with an X in it (c) a long and a short line (d) triangle, bar and arrows
13. 13.True or false: a dot where wires meet is the symbol for a wire. (a) True (b) False
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
15. 15.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with V inside (c) a circle with A inside (d) triangle against a bar
16. 16.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
17. 17.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) battery (c) switch (d) motor
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) motor (c) bulb (d) switch
20. 20.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) battery (c) cell (d) capacitor
21. 21.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
22. 22.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
23. 23.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
24. 24.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with M inside
25. 25.True or false: a straight line is the symbol for a motor. (a) True (b) False
26. 26.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
27. 27.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
28. 28.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
29. 29.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a dot where wires meet (c) two or more cell symbols (d) a circle with an X in it
30. 30.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
31. 31.Which drawing is the symbol for a cell? (a) two or more cell symbols (b) one tall, one short bar (c) a plain rectangle (d) a circle with V inside
32. 32.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
33. 33.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
34. 34.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) junction (c) motor (d) switch
36. 36.Which drawing is the symbol for a motor? (a) two equal parallel lines (b) a circle with a cross (c) a line lifted at a gap (d) a circle with M inside
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) ammeter (c) capacitor (d) wire
38. 38.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) triangle against a bar (c) a circle with a cross (d) a long and a short line
39. 39.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) a circle with A inside (c) a circle with M inside (d) two equal parallel lines
40. 40.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) motor (d) cell

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