Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 691 · 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 switch? (a) a line lifted at a gap (b) triangle against a bar (c) a straight line (d) a circle with A inside
2. 2.True or false: a dot where wires meet is the symbol for an ammeter. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) ammeter (c) cell (d) battery
4. 4.Which drawing is the symbol for a cell? (a) triangle against a bar (b) a small empty box (c) a long and a short line (d) two equal parallel lines
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
6. 6.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) cell (c) junction (d) battery
7. 7.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) resistor (c) battery (d) LED
9. 9.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
10. 10.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a plain rectangle (c) a straight line (d) a circle with V inside
11. 11.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
12. 12.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a circle with M inside (c) a circle with an X in it (d) one tall, one short bar
13. 13.True or false: a circle with a cross is the symbol for a diode. (a) False (b) True
14. 14.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) bulb (c) diode (d) ammeter
16. 16.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a dot where wires meet (c) a plain rectangle (d) two equal parallel lines
17. 17.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) triangle, bar and arrows (c) a long and a short line (d) a circle with a cross
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) motor (c) voltmeter (d) diode
19. 19.True or false: two equal parallel lines is the symbol for a battery. (a) True (b) False
20. 20.Which drawing is the symbol for a battery? (a) a long and a short line (b) a small empty box (c) two or more cell symbols (d) a circle with a cross
21. 21.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
22. 22.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a line lifted at a gap (c) a circle with a cross (d) two or more cell symbols
23. 23.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) motor (c) diode (d) switch
25. 25.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) LED (c) battery (d) bulb
27. 27.True or false: a straight line is the symbol for a wire. (a) True (b) False
28. 28.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a line lifted at a gap (c) triangle against a bar (d) triangle, bar and arrows
29. 29.True or false: a circle with M inside is the symbol for a bulb. (a) True (b) False
30. 30.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a straight line (c) one tall, one short bar (d) two or more cell symbols
31. 31.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a circle with a cross (c) a long and a short line (d) a small empty box
32. 32.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
33. 33.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
34. 34.Which drawing is the symbol for a wire? (a) a circle with an X in it (b) two or more cell symbols (c) a straight line (d) a circle with M inside
35. 35.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) a circle with A inside (c) one tall, one short bar (d) a circle with V inside
36. 36.True or false: a circle with A inside is the symbol for a resistor. (a) True (b) False
37. 37.True or false: a circle with M inside is the symbol for a resistor. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) ammeter (c) battery (d) junction
39. 39.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) resistor (c) battery (d) capacitor

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