Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 365 · 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) bulb (b) junction (c) wire (d) motor
2. 2.✏️ 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
3. 3.Which drawing is the symbol for a motor? (a) triangle against a bar (b) a circle with M inside (c) one tall, one short bar (d) a circle with V inside
4. 4.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) ammeter (c) bulb (d) capacitor
5. 5.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) wire (d) switch
7. 7.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) ammeter (c) diode (d) capacitor
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) diode (c) cell (d) motor
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
11. 11.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a circle with a cross (c) two or more cell symbols (d) a dot where wires meet
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
13. 13.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with a cross (c) two equal parallel lines (d) a small empty box
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) diode (c) cell (d) switch
15. 15.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) two or more cell symbols (c) a circle with V inside (d) one tall, one short bar
16. 16.True or false: a circle with M inside is the symbol for a switch. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) wire (c) diode (d) switch
18. 18.True or false: two or more cell symbols is the symbol for a capacitor. (a) False (b) True
19. 19.True or false: a straight line is the symbol for a wire. (a) True (b) False
20. 20.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
21. 21.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a straight line (c) a plain rectangle (d) two or more cell symbols
22. 22.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) triangle against a bar (c) many long-short pairs (d) two equal parallel lines
23. 23.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with an X in it (c) two or more cell symbols (d) a long and a short line
24. 24.Which drawing is the symbol for a resistor? (a) triangle, bar and arrows (b) a long and a short line (c) a plain rectangle (d) a dot where wires meet
25. 25.True or false: a circle with an X in it is the symbol for a switch. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) diode (c) LED (d) cell
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) switch (c) resistor (d) cell
28. 28.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) junction (c) bulb (d) resistor
29. 29.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
30. 30.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
31. 31.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
32. 32.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
33. 33.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a circle with a cross (c) a straight line (d) a circle with an X in it
34. 34.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) motor (c) capacitor (d) junction
35. 35.Which drawing is the symbol for an LED? (a) a circle with A inside (b) one tall, one short bar (c) triangle, bar and arrows (d) a circle with a cross
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) bulb (c) voltmeter (d) motor
37. 37.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) motor (c) diode (d) voltmeter
39. 39.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with a cross (c) a circle with A inside (d) a small empty box
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) cell (c) resistor (d) junction

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