Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 400 · 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 straight line? (a) battery (b) switch (c) wire (d) resistor
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
3. 3.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
4. 4.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
5. 5.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
6. 6.Which drawing is the symbol for an LED? (a) a circle with A inside (b) triangle, bar and arrows (c) triangle against a bar (d) two equal parallel lines
7. 7.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) ammeter (c) diode (d) resistor
8. 8.Which drawing is the symbol for a battery? (a) a circle with A inside (b) a circle with an X in it (c) many long-short pairs (d) a circle with M inside
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) battery (b) junction (c) motor (d) voltmeter
10. 10.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
11. 11.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
12. 12.Which drawing is the symbol for a wire? (a) a long and a short line (b) a straight line (c) a circle with A inside (d) many long-short pairs
13. 13.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) a plain rectangle (c) a long and a short line (d) triangle against a bar
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
15. 15.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) resistor (c) motor (d) diode
17. 17.Which drawing is the symbol for a cell? (a) a straight line (b) a circle with M inside (c) a long and a short line (d) two equal parallel lines
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) capacitor (c) junction (d) switch
19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) motor (c) diode (d) capacitor
20. 20.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) cell (c) voltmeter (d) resistor
22. 22.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
23. 23.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a straight line (c) a circle with M inside (d) triangle, bar and arrows
24. 24.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) a circle with an X in it (c) two or more cell symbols (d) a small empty box
25. 25.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) bulb (c) battery (d) capacitor
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) bulb (c) resistor (d) diode
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) cell (c) bulb (d) capacitor
28. 28.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) diode (c) resistor (d) junction
29. 29.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a circle with a cross (c) a circle with A inside (d) a line lifted at a gap
30. 30.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
31. 31.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
32. 32.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
33. 33.True or false: a circle with V inside is the symbol for an ammeter. (a) False (b) True
34. 34.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) motor (c) bulb (d) diode
36. 36.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) voltmeter (c) battery (d) motor
37. 37.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
38. 38.True or false: a straight line is the symbol for a wire. (a) False (b) True
39. 39.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with an X in it (c) a circle with a cross (d) a dot where wires meet
40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False

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