Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 471 · 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 bulb? (a) triangle against a bar (b) triangle, bar and arrows (c) a small empty box (d) a circle with an X in it
2. 2.✏️ 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
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) voltmeter (c) battery (d) resistor
5. 5.True or false: a dot where wires meet is the symbol for a switch. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) bulb (c) voltmeter (d) wire
7. 7.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
8. 8.Which drawing is the symbol for a motor? (a) a circle with A inside (b) a straight line (c) a circle with M inside (d) a line lifted at a gap
9. 9.Which drawing is the symbol for a voltmeter? (a) a straight line (b) a circle with A inside (c) a plain rectangle (d) a circle with V inside
10. 10.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) diode (c) bulb (d) voltmeter
11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) bulb (c) motor (d) switch
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) switch (c) wire (d) ammeter
13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) cell (c) battery (d) motor
14. 14.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) switch (c) junction (d) cell
15. 15.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
16. 16.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) diode (c) switch (d) bulb
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) bulb (c) motor (d) diode
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) voltmeter (c) junction (d) motor
21. 21.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
22. 22.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) a small empty box (c) triangle, bar and arrows (d) a straight line
23. 23.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
24. 24.Which drawing is the symbol for a cell? (a) a long and a short line (b) a plain rectangle (c) a circle with M inside (d) two or more cell symbols
25. 25.True or false: two or more cell symbols is the symbol for a switch. (a) True (b) False
26. 26.True or false: one tall, one short bar is the symbol for a voltmeter. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) capacitor (c) ammeter (d) resistor
28. 28.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
29. 29.Which drawing is the symbol for an ammeter? (a) a small empty box (b) many long-short pairs (c) a circle with A inside (d) triangle against a bar
30. 30.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) triangle, bar and arrows (c) triangle against a bar (d) a long and a short line
31. 31.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
32. 32.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
33. 33.Which drawing is the symbol for a switch? (a) a straight line (b) many long-short pairs (c) one tall, one short bar (d) a line lifted at a gap
34. 34.Which drawing is the symbol for a battery? (a) many long-short pairs (b) triangle against a bar (c) two equal parallel lines (d) a small empty box
35. 35.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) triangle against a bar (c) many long-short pairs (d) a circle with a cross
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) ammeter (c) cell (d) resistor
37. 37.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) motor (c) ammeter (d) junction
39. 39.True or false: a circle with M inside is the symbol for a capacitor. (a) False (b) True
40. 40.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a straight line (c) a small empty box (d) a circle with a cross

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