Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 115 · 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 switch. (a) False (b) True
2. 2.True or false: a straight line is the symbol for a diode. (a) False (b) True
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) bulb (c) battery (d) cell
4. 4.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
5. 5.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) capacitor (c) motor (d) ammeter
7. 7.Which drawing is the symbol for a motor? (a) a dot where wires meet (b) triangle, bar and arrows (c) triangle against a bar (d) a circle with M inside
8. 8.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with a cross (c) triangle against a bar (d) a circle with M inside
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) voltmeter (c) motor (d) junction
10. 10.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a long and a short line (c) many long-short pairs (d) a line lifted at a gap
11. 11.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) resistor (c) bulb (d) voltmeter
12. 12.True or false: a long and a short line is the symbol for a bulb. (a) False (b) True
13. 13.Which drawing is the symbol for a battery? (a) a circle with M inside (b) triangle against a bar (c) a circle with a cross (d) two or more cell symbols
14. 14.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) capacitor (c) diode (d) LED
16. 16.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
17. 17.True or false: a straight line is the symbol for a wire. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) ammeter (c) wire (d) cell
19. 19.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) capacitor (c) battery (d) resistor
21. 21.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
22. 22.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) motor (c) wire (d) LED
24. 24.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with M inside (c) a circle with V inside (d) a circle with A inside
25. 25.Which drawing is the symbol for a resistor? (a) a circle with V inside (b) a plain rectangle (c) many long-short pairs (d) a circle with a cross
26. 26.True or false: a line lifted at a gap is the symbol for a motor. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) cell (c) motor (d) wire
28. 28.True or false: a small empty box is the symbol for a motor. (a) False (b) True
29. 29.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
30. 30.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a circle with V inside (c) triangle, bar and arrows (d) a line lifted at a gap
31. 31.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
32. 32.True or false: a line lifted at a gap is the symbol for an ammeter. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) battery (c) motor (d) cell
34. 34.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) voltmeter (c) battery (d) diode
36. 36.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a line lifted at a gap (c) a circle with V inside (d) a circle with A inside
37. 37.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
38. 38.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
39. 39.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) cell (c) capacitor (d) battery
40. 40.Which drawing is the symbol for a diode? (a) triangle against a bar (b) triangle, bar and arrows (c) a plain rectangle (d) many long-short pairs

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