Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 796 · 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.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
2. 2.Which drawing is the symbol for a battery? (a) a circle with M inside (b) triangle against a bar (c) two or more cell symbols (d) a plain rectangle
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) quick and clear for all (d) to hide the circuit
4. 4.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) cell (c) switch (d) bulb
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
6. 6.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) many long-short pairs (c) a long and a short line (d) a circle with a cross
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) ammeter (c) voltmeter (d) bulb
9. 9.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) bulb (c) wire (d) resistor
10. 10.True or false: a line lifted at a gap is the symbol for a wire. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) diode (c) resistor (d) switch
12. 12.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a circle with an X in it (c) triangle, bar and arrows (d) a circle with A inside
13. 13.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) LED (c) bulb (d) motor
14. 14.Which drawing is the symbol for a cell? (a) a circle with a cross (b) triangle, bar and arrows (c) two equal parallel lines (d) a long and a short line
15. 15.Which drawing is the symbol for a voltmeter? (a) a circle with A inside (b) a circle with M inside (c) a circle with V inside (d) triangle against a bar
16. 16.True or false: a straight line is the symbol for a wire. (a) False (b) True
17. 17.True or false: two or more cell symbols is the symbol for an LED. (a) False (b) True
18. 18.True or false: many long-short pairs is the symbol for a capacitor. (a) False (b) True
19. 19.True or false: a circle with M inside is the symbol for a battery. (a) False (b) True
20. 20.True or false: triangle, bar and arrows is the symbol for a junction. (a) True (b) False
21. 21.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) battery (c) capacitor (d) wire
23. 23.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) wire (c) bulb (d) voltmeter
24. 24.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) junction (c) LED (d) switch
25. 25.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
26. 26.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
27. 27.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
28. 28.Which drawing is the symbol for a diode? (a) a small empty box (b) two equal parallel lines (c) a straight line (d) triangle against a bar
29. 29.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
30. 30.Which drawing is the symbol for a switch? (a) two equal parallel lines (b) a straight line (c) a circle with V inside (d) a line lifted at a gap
31. 31.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) battery (c) bulb (d) LED
32. 32.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) junction (c) battery (d) cell
34. 34.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
35. 35.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a small empty box (c) a dot where wires meet (d) a circle with M inside
36. 36.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
37. 37.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with V inside (c) triangle against a bar (d) a long and a short line
38. 38.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) wire (c) voltmeter (d) diode
39. 39.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) triangle, bar and arrows (c) a small empty box (d) a dot where wires meet
40. 40.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False

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