Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 976 · 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, which part is drawn as a dot where wires meet? (a) bulb (b) LED (c) junction (d) resistor
2. 2.True or false: a circle with M inside is the symbol for a wire. (a) True (b) False
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
4. 4.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) two equal parallel lines
5. 5.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a dot where wires meet (c) triangle against a bar (d) one tall, one short bar
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) battery (b) bulb (c) ammeter (d) LED
7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) motor (c) wire (d) cell
8. 8.Which drawing is the symbol for an LED? (a) a small empty box (b) two equal parallel lines (c) triangle, bar and arrows (d) a long and a short line
9. 9.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
10. 10.True or false: a straight line is the symbol for a wire. (a) True (b) False
11. 11.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) many long-short pairs (c) one tall, one short bar (d) a circle with an X in it
12. 12.Which drawing is the symbol for a switch? (a) a long and a short line (b) a line lifted at a gap (c) two equal parallel lines (d) a circle with M inside
13. 13.True or false: a long and a short line is the symbol for a diode. (a) False (b) True
14. 14.True or false: two equal parallel lines is the symbol for a switch. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) ammeter (c) diode (d) battery
16. 16.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) switch (c) LED (d) diode
18. 18.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a plain rectangle (c) two or more cell symbols (d) a circle with a cross
19. 19.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a straight line (c) a long and a short line (d) a dot where wires meet
20. 20.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) motor (c) voltmeter (d) diode
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) diode (c) wire (d) battery
22. 22.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) bulb (c) voltmeter (d) motor
24. 24.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a circle with V inside (c) one tall, one short bar (d) a dot where wires meet
25. 25.True or false: triangle, bar and arrows is the symbol for a battery. (a) False (b) True
26. 26.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
27. 27.True or false: a small empty box is the symbol for a bulb. (a) True (b) False
28. 28.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
29. 29.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
30. 30.True or false: one tall, one short bar is the symbol for a resistor. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) cell (c) capacitor (d) bulb
32. 32.Which drawing is the symbol for a voltmeter? (a) a circle with a cross (b) a circle with an X in it (c) a circle with V inside (d) a circle with M inside
33. 33.Which drawing is the symbol for a motor? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with M inside (d) a dot where wires meet
34. 34.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a circle with M inside (c) a dot where wires meet (d) a plain rectangle
35. 35.True or false: one tall, one short bar is the symbol for a motor. (a) False (b) True
36. 36.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) motor (c) cell (d) battery
38. 38.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
39. 39.Which drawing is the symbol for a wire? (a) a circle with A inside (b) many long-short pairs (c) triangle against a bar (d) a straight line
40. 40.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True

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