Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 830 · 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) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
2. 2.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a dot where wires meet (c) two or more cell symbols (d) a circle with M inside
3. 3.Which drawing is the symbol for an ammeter? (a) triangle against a bar (b) a long and a short line (c) a circle with V inside (d) a circle with A inside
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
5. 5.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) junction (c) battery (d) resistor
6. 6.True or false: a straight line is the symbol for a wire. (a) True (b) False
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
8. 8.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with M inside (c) a straight line (d) a plain rectangle
9. 9.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) bulb (c) cell (d) battery
10. 10.Which drawing is the symbol for a diode? (a) a circle with V inside (b) one tall, one short bar (c) triangle against a bar (d) many long-short pairs
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) wire (c) motor (d) bulb
12. 12.Which drawing is the symbol for a switch? (a) a circle with M inside (b) a line lifted at a gap (c) many long-short pairs (d) two or more cell symbols
13. 13.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
14. 14.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a plain rectangle (c) a line lifted at a gap (d) a circle with a cross
15. 15.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) two equal parallel lines (c) many long-short pairs (d) a circle with V inside
16. 16.True or false: a circle with M inside is the symbol for a capacitor. (a) False (b) True
17. 17.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) two equal parallel lines (c) a circle with V inside (d) a dot where wires meet
18. 18.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
19. 19.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
20. 20.Which drawing is the symbol for a cell? (a) a circle with V inside (b) two or more cell symbols (c) a long and a short line (d) triangle, bar and arrows
21. 21.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
22. 22.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a straight line (c) one tall, one short bar (d) a circle with V inside
23. 23.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) LED (c) ammeter (d) capacitor
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) bulb (c) junction (d) diode
26. 26.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
27. 27.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a line lifted at a gap (c) many long-short pairs (d) a circle with A inside
28. 28.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) diode (c) battery (d) switch
29. 29.True or false: triangle, bar and arrows is the symbol for a bulb. (a) False (b) True
30. 30.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
31. 31.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with a cross (c) one tall, one short bar (d) two or more cell symbols
32. 32.True or false: a circle with a cross is the symbol for an ammeter. (a) True (b) False
33. 33.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) switch (c) bulb (d) wire
34. 34.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) battery (c) LED (d) capacitor
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) voltmeter (c) battery (d) ammeter
36. 36.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
37. 37.True or false: two or more cell symbols is the symbol for a resistor. (a) True (b) False
38. 38.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
39. 39.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) cell (c) battery (d) switch

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