Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 995 · 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) straight lines (b) wavy lines (c) little stars (d) dotted circles
2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) voltmeter (c) wire (d) battery
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
4. 4.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) two equal parallel lines (c) one tall, one short bar (d) a circle with an X in it
5. 5.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a plain rectangle (c) a straight line (d) a circle with A inside
6. 6.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
7. 7.Which drawing is the symbol for a switch? (a) triangle against a bar (b) a line lifted at a gap (c) many long-short pairs (d) a circle with V inside
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) ammeter (c) LED (d) motor
10. 10.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
11. 11.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
12. 12.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) wire (c) switch (d) resistor
14. 14.Which drawing is the symbol for a cell? (a) a circle with a cross (b) one tall, one short bar (c) two or more cell symbols (d) triangle, bar and arrows
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) motor (c) battery (d) LED
16. 16.Which drawing is the symbol for a resistor? (a) a small empty box (b) triangle, bar and arrows (c) a straight line (d) a circle with A inside
17. 17.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a straight line (c) a long and a short line (d) triangle against a bar
18. 18.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
19. 19.True or false: a straight line is the symbol for an ammeter. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) capacitor (c) motor (d) cell
21. 21.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) battery (c) cell (d) switch
23. 23.True or false: a dot where wires meet is the symbol for a capacitor. (a) True (b) False
24. 24.True or false: a circle with a cross is the symbol for a switch. (a) True (b) False
25. 25.True or false: a straight line is the symbol for a wire. (a) False (b) True
26. 26.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
27. 27.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with M inside (c) one tall, one short bar (d) a dot where wires meet
28. 28.True or false: a plain rectangle is the symbol for a capacitor. (a) False (b) True
29. 29.Which drawing is the symbol for an LED? (a) a circle with a cross (b) triangle against a bar (c) a circle with an X in it (d) triangle, bar and arrows
30. 30.Which drawing is the symbol for a motor? (a) many long-short pairs (b) one tall, one short bar (c) a circle with V inside (d) a circle with M inside
31. 31.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) cell (c) resistor (d) capacitor
32. 32.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
33. 33.True or false: a straight line is the symbol for a switch. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a straight line? (a) motor (b) cell (c) wire (d) battery
35. 35.True or false: a plain rectangle is the symbol for a switch. (a) True (b) False
36. 36.Which drawing is the symbol for a battery? (a) a circle with a cross (b) a long and a short line (c) two or more cell symbols (d) a circle with an X in it
37. 37.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) LED (c) diode (d) cell
38. 38.Which drawing is the symbol for an ammeter? (a) a straight line (b) a circle with V inside (c) a circle with A inside (d) two equal parallel lines
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) capacitor (c) battery (d) voltmeter
40. 40.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) resistor (c) junction (d) capacitor

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