Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 509 · 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 two or more cell symbols? (a) LED (b) battery (c) junction (d) diode
2. 2.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) motor (d) switch
4. 4.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) triangle against a bar (c) many long-short pairs (d) one tall, one short bar
5. 5.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) LED (c) cell (d) voltmeter
6. 6.True or false: a circle with a cross is the symbol for a wire. (a) True (b) False
7. 7.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
8. 8.Which drawing is the symbol for a switch? (a) a straight line (b) one tall, one short bar (c) triangle, bar and arrows (d) a line lifted at a gap
9. 9.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a line lifted at a gap (c) a circle with V inside (d) a circle with M inside
10. 10.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
11. 11.Which drawing is the symbol for a junction? (a) a straight line (b) a dot where wires meet (c) triangle, bar and arrows (d) a line lifted at a gap
12. 12.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) cell (c) battery (d) diode
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
14. 14.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
15. 15.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) diode (c) motor (d) ammeter
17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) voltmeter (c) battery (d) switch
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) bulb (c) voltmeter (d) ammeter
19. 19.True or false: a dot where wires meet is the symbol for a bulb. (a) False (b) True
20. 20.True or false: a long and a short line is the symbol for a voltmeter. (a) True (b) False
21. 21.Which drawing is the symbol for an LED? (a) one tall, one short bar (b) triangle, bar and arrows (c) triangle against a bar (d) a dot where wires meet
22. 22.True or false: a straight line is the symbol for a bulb. (a) False (b) True
23. 23.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) little stars (d) straight lines
24. 24.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) wire (c) cell (d) capacitor
26. 26.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
27. 27.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
28. 28.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) two equal parallel lines (c) a circle with an X in it (d) many long-short pairs
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) LED (c) motor (d) wire
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) LED (c) ammeter (d) wire
31. 31.True or false: a circle with A inside is the symbol for a battery. (a) False (b) True
32. 32.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
33. 33.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
34. 34.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a circle with a cross (c) two equal parallel lines (d) a line lifted at a gap
35. 35.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a straight line (c) a circle with V inside (d) many long-short pairs
36. 36.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with a cross (c) a long and a short line (d) one tall, one short bar
37. 37.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
38. 38.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) a plain rectangle
39. 39.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
40. 40.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) one tall, one short bar (c) many long-short pairs (d) a circle with an X in it

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