Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 339 · 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 circuit diagram, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) capacitor (c) diode (d) resistor
3. 3.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) a plain rectangle (c) two or more cell symbols (d) a line lifted at a gap
4. 4.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) switch (b) diode (c) cell (d) voltmeter
6. 6.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False
7. 7.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a small empty box (c) a long and a short line (d) a circle with an X in it
8. 8.True or false: a circle with an X in it is the symbol for a capacitor. (a) False (b) True
9. 9.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
10. 10.True or false: a plain rectangle is the symbol for a diode. (a) False (b) True
11. 11.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
12. 12.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
14. 14.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
15. 15.Which drawing is the symbol for a battery? (a) a straight line (b) a circle with V inside (c) one tall, one short bar (d) many long-short pairs
16. 16.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
17. 17.✏️ 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
18. 18.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) two equal parallel lines (c) a circle with M inside (d) a circle with V inside
19. 19.Which drawing is the symbol for a diode? (a) a circle with V inside (b) triangle against a bar (c) one tall, one short bar (d) two equal parallel lines
20. 20.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a line lifted at a gap (c) a circle with V inside (d) triangle, bar and arrows
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) diode (c) capacitor (d) motor
22. 22.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
23. 23.True or false: a line lifted at a gap is the symbol for a bulb. (a) True (b) False
24. 24.Which drawing is the symbol for a cell? (a) a straight line (b) a plain rectangle (c) one tall, one short bar (d) many long-short pairs
25. 25.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) battery (d) voltmeter
27. 27.Which drawing is the symbol for a wire? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with a cross (d) a straight line
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) ammeter (c) diode (d) motor
29. 29.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) diode (c) junction (d) ammeter
30. 30.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a small empty box (c) triangle against a bar (d) a dot where wires meet
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) motor (c) ammeter (d) bulb
32. 32.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with an X in it (c) two equal parallel lines (d) one tall, one short bar
33. 33.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
34. 34.True or false: a circle with V inside is the symbol for a motor. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) bulb (b) cell (c) ammeter (d) motor
36. 36.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) wire (c) bulb (d) capacitor
37. 37.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) True (b) False
38. 38.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) battery (c) cell (d) wire
40. 40.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a dot where wires meet (c) a long and a short line (d) a circle with an X in it

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