Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 64 · 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 cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
2. 2.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) one tall, one short bar (c) triangle, bar and arrows (d) a dot where wires meet
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) junction (c) battery (d) bulb
4. 4.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) switch (c) wire (d) junction
5. 5.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
6. 6.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
7. 7.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to hide the circuit (c) symbols are heavier (d) to make it colourful
8. 8.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
9. 9.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
10. 10.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
11. 11.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a circle with A inside (c) a small empty box (d) a circle with V inside
12. 12.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
13. 13.True or false: a circle with an X in it is the symbol for a motor. (a) False (b) True
14. 14.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a circle with M inside (c) a line lifted at a gap (d) a small empty box
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) diode (c) resistor (d) bulb
16. 16.True or false: a straight line is the symbol for a wire. (a) True (b) False
17. 17.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
18. 18.Which drawing is the symbol for a diode? (a) a small empty box (b) triangle against a bar (c) two or more cell symbols (d) a straight line
19. 19.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a dot where wires meet (c) two equal parallel lines (d) one tall, one short bar
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) resistor (c) bulb (d) LED
21. 21.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) a circle with A inside (c) two equal parallel lines (d) a long and a short line
22. 22.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) junction (c) ammeter (d) resistor
24. 24.Which drawing is the symbol for a motor? (a) a small empty box (b) a dot where wires meet (c) a circle with M inside (d) a circle with an X in it
25. 25.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) switch (c) LED (d) cell
26. 26.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) resistor (c) cell (d) switch
27. 27.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
28. 28.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) two or more cell symbols (c) a small empty box (d) many long-short pairs
29. 29.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) one tall, one short bar (c) a long and a short line (d) triangle against a bar
30. 30.True or false: a straight line is the symbol for an LED. (a) False (b) True
31. 31.True or false: a circle with A inside is the symbol for a wire. (a) True (b) False
32. 32.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with a cross (c) a circle with M inside (d) a small empty box
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) motor (c) cell (d) resistor
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) ammeter (c) diode (d) switch
35. 35.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
36. 36.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a circle with a cross (c) a plain rectangle (d) a straight line
37. 37.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
38. 38.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) bulb (c) battery (d) switch
39. 39.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a line lifted at a gap (c) many long-short pairs (d) a straight line
40. 40.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True

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