Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 808 · 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 triangle against a bar? (a) battery (b) motor (c) junction (d) diode
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
3. 3.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
4. 4.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
5. 5.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
6. 6.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) two equal parallel lines (c) a straight line (d) a long and a short line
7. 7.Which drawing is the symbol for an ammeter? (a) a circle with an X in it (b) a circle with V inside (c) a circle with A inside (d) a circle with a cross
8. 8.Which drawing is the symbol for a battery? (a) a long and a short line (b) two or more cell symbols (c) one tall, one short bar (d) a circle with an X in it
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) voltmeter (c) battery (d) bulb
10. 10.True or false: a circle with A inside is the symbol for a switch. (a) True (b) False
11. 11.True or false: a small empty box is the symbol for a switch. (a) False (b) True
12. 12.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a circle with a cross (c) many long-short pairs (d) a circle with V inside
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) bulb (c) cell (d) wire
14. 14.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
15. 15.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with a cross (c) a small empty box (d) a circle with M inside
16. 16.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) cell (c) junction (d) capacitor
17. 17.True or false: a plain rectangle is the symbol for a wire. (a) False (b) True
18. 18.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a small empty box (c) a circle with a cross (d) a dot where wires meet
19. 19.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
20. 20.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
21. 21.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
22. 22.True or false: a circle with an X in it is the symbol for a cell. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) ammeter (c) resistor (d) switch
24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) capacitor (c) wire (d) cell
25. 25.✏️ 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
26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) ammeter (c) wire (d) bulb
27. 27.Which drawing is the symbol for a capacitor? (a) a straight line (b) a dot where wires meet (c) two equal parallel lines (d) two or more cell symbols
28. 28.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
29. 29.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) two or more cell symbols (c) a circle with a cross (d) a dot where wires meet
30. 30.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) junction (c) voltmeter (d) diode
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) junction (c) ammeter (d) voltmeter
33. 33.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a dot where wires meet (c) two equal parallel lines (d) a long and a short line
34. 34.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
35. 35.True or false: a circle with a cross is the symbol for an LED. (a) False (b) True
36. 36.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
37. 37.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) two or more cell symbols (c) a circle with M inside (d) a circle with A inside
38. 38.True or false: a long and a short line is the symbol for a capacitor. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) junction (c) cell (d) resistor
40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) battery (c) resistor (d) ammeter

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