Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 586 · 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 voltmeter? (a) a circle with A inside (b) a circle with a cross (c) a dot where wires meet (d) a circle with V inside
2. 2.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
3. 3.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with A inside (c) two or more cell symbols (d) many long-short pairs
4. 4.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) voltmeter (c) battery (d) bulb
5. 5.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) bulb (c) wire (d) battery
6. 6.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
7. 7.True or false: a plain rectangle is the symbol for a wire. (a) False (b) True
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
9. 9.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) resistor (c) bulb (d) capacitor
10. 10.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) two equal parallel lines (c) a circle with a cross (d) triangle, bar and arrows
11. 11.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) diode (c) motor (d) bulb
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) voltmeter (c) capacitor (d) battery
14. 14.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) bulb (c) cell (d) ammeter
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
16. 16.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with A inside (c) a circle with M inside (d) triangle against a bar
17. 17.Which drawing is the symbol for a diode? (a) a small empty box (b) two or more cell symbols (c) triangle against a bar (d) two equal parallel lines
18. 18.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a circle with A inside (c) a circle with V inside (d) a small empty box
19. 19.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) ammeter (c) junction (d) bulb
21. 21.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
22. 22.Which drawing is the symbol for a capacitor? (a) a small empty box (b) two equal parallel lines (c) a long and a short line (d) a line lifted at a gap
23. 23.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
25. 25.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) switch (c) junction (d) diode
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) ammeter (c) bulb (d) junction
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) motor (c) junction (d) bulb
28. 28.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a circle with A inside (c) two or more cell symbols (d) a straight line
29. 29.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) resistor (c) junction (d) LED
30. 30.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
31. 31.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
32. 32.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
33. 33.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a circle with A inside (c) a line lifted at a gap (d) a circle with a cross
34. 34.True or false: a small empty box is the symbol for a switch. (a) True (b) False
35. 35.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
36. 36.True or false: many long-short pairs is the symbol for an ammeter. (a) False (b) True
37. 37.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) junction (c) switch (d) battery
39. 39.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
40. 40.True or false: a straight line is the symbol for a diode. (a) True (b) False

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