Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 145 · 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.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) quick and clear for all (d) symbols are heavier
2. 2.True or false: triangle, bar and arrows is the symbol for a resistor. (a) False (b) True
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
4. 4.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) battery (c) resistor (d) capacitor
5. 5.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) junction (c) resistor (d) switch
6. 6.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
7. 7.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a long and a short line (c) two equal parallel lines (d) triangle against a bar
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) voltmeter (c) motor (d) cell
10. 10.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a long and a short line (c) triangle against a bar (d) two equal parallel lines
11. 11.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a circle with V inside (c) a circle with an X in it (d) many long-short pairs
12. 12.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
13. 13.Which drawing is the symbol for a battery? (a) a long and a short line (b) a small empty box (c) a circle with an X in it (d) two or more cell symbols
14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) resistor (c) switch (d) motor
15. 15.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) cell (c) diode (d) motor
17. 17.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) cell (c) motor (d) battery
18. 18.True or false: a circle with A inside is the symbol for a capacitor. (a) True (b) False
19. 19.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with V inside (d) many long-short pairs
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) switch (c) motor (d) diode
21. 21.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a line lifted at a gap (c) a circle with a cross (d) many long-short pairs
22. 22.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
23. 23.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
24. 24.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
25. 25.Which drawing is the symbol for a switch? (a) a circle with V inside (b) triangle, bar and arrows (c) a long and a short line (d) a line lifted at a gap
26. 26.Which drawing is the symbol for a bulb? (a) a small empty box (b) a circle with an X in it (c) a circle with V inside (d) triangle against a bar
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) motor (c) wire (d) resistor
28. 28.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a line lifted at a gap (c) a circle with an X in it (d) a circle with A inside
29. 29.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) switch (c) battery (d) capacitor
30. 30.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with A inside (c) a circle with M inside (d) a small empty box
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) bulb (c) switch (d) resistor
32. 32.True or false: a long and a short line is the symbol for a motor. (a) True (b) False
33. 33.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
34. 34.True or false: a straight line is the symbol for a voltmeter. (a) True (b) False
35. 35.Which drawing is the symbol for a wire? (a) a straight line (b) many long-short pairs (c) a circle with M inside (d) a circle with A inside
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) motor (c) ammeter (d) diode
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) LED (c) bulb (d) cell
38. 38.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) cell (c) capacitor (d) ammeter
40. 40.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False

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