Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 305 · 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.Which drawing is the symbol for a battery? (a) a circle with A inside (b) many long-short pairs (c) one tall, one short bar (d) a straight line
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) bulb (c) resistor (d) battery
3. 3.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a dot where wires meet (c) a long and a short line (d) two or more cell symbols
4. 4.True or false: a plain rectangle is the symbol for a bulb. (a) True (b) False
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
7. 7.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with V inside (c) a circle with A inside (d) a circle with M inside
8. 8.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) LED (c) cell (d) battery
9. 9.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) cell (c) battery (d) bulb
10. 10.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
11. 11.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) True (b) False
12. 12.True or false: a circle with M inside is the symbol for a diode. (a) True (b) False
13. 13.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) triangle, bar and arrows (c) a plain rectangle (d) triangle against a bar
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) battery (c) capacitor (d) ammeter
15. 15.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with a cross (c) many long-short pairs (d) a long and a short line
16. 16.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a circle with M inside (c) a long and a short line (d) a straight line
17. 17.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
18. 18.True or false: many long-short pairs is the symbol for a voltmeter. (a) False (b) True
19. 19.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) resistor (c) battery (d) LED
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) diode (c) motor (d) battery
22. 22.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) capacitor (c) switch (d) bulb
24. 24.True or false: a circle with a cross is the symbol for an ammeter. (a) False (b) True
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) motor (c) bulb (d) ammeter
26. 26.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
27. 27.True or false: two equal parallel lines is the symbol for a junction. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) cell (c) junction (d) voltmeter
29. 29.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) cell (c) battery (d) voltmeter
31. 31.Which drawing is the symbol for a wire? (a) a circle with M inside (b) two or more cell symbols (c) a straight line (d) triangle, bar and arrows
32. 32.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) two or more cell symbols (c) a circle with A inside (d) a circle with V inside
33. 33.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a line lifted at a gap (c) triangle against a bar (d) a straight line
34. 34.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) motor (c) ammeter (d) LED
35. 35.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
36. 36.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with a cross (c) a plain rectangle (d) a circle with an X in it
37. 37.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) junction (c) bulb (d) diode
38. 38.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) cell (c) resistor (d) LED
39. 39.True or false: a long and a short line is the symbol for a junction. (a) True (b) False
40. 40.True or false: triangle, bar and arrows is the symbol for a junction. (a) True (b) False

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