Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 407 · 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 many long-short pairs? (a) bulb (b) diode (c) battery (d) resistor
2. 2.Which drawing is the symbol for a voltmeter? (a) a circle with M inside (b) one tall, one short bar (c) a circle with V inside (d) a small empty box
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) cell (c) wire (d) bulb
4. 4.Which drawing is the symbol for a wire? (a) one tall, one short bar (b) a circle with a cross (c) triangle against a bar (d) a straight line
5. 5.Which drawing is the symbol for a cell? (a) triangle against a bar (b) a long and a short line (c) a dot where wires meet (d) a circle with V inside
6. 6.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) battery (c) switch (d) motor
8. 8.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with an X in it (c) a circle with A inside (d) a circle with V inside
9. 9.True or false: a circle with an X in it is the symbol for a wire. (a) False (b) True
10. 10.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
11. 11.True or false: a plain rectangle is the symbol for a wire. (a) False (b) True
12. 12.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
13. 13.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) voltmeter (c) switch (d) junction
15. 15.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) many long-short pairs (c) a circle with a cross (d) triangle, bar and arrows
16. 16.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) motor (c) bulb (d) cell
18. 18.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) wavy lines (d) straight lines
19. 19.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a small empty box (c) two equal parallel lines (d) a circle with V inside
20. 20.True or false: a straight line is the symbol for a wire. (a) True (b) False
21. 21.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) triangle, bar and arrows (c) a line lifted at a gap (d) two equal parallel lines
22. 22.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) voltmeter (c) bulb (d) diode
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) switch (c) resistor (d) motor
25. 25.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) the longer line (d) both lines
26. 26.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) battery (c) resistor (d) bulb
28. 28.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) bulb (c) LED (d) capacitor
30. 30.Which drawing is the symbol for a resistor? (a) a line lifted at a gap (b) a plain rectangle (c) one tall, one short bar (d) a circle with V inside
31. 31.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) one tall, one short bar (c) two equal parallel lines (d) many long-short pairs
32. 32.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) cell (c) resistor (d) diode
33. 33.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with a cross (c) a line lifted at a gap (d) a long and a short line
34. 34.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
35. 35.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) LED (c) cell (d) capacitor
37. 37.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a long and a short line (c) a circle with A inside (d) a line lifted at a gap
38. 38.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
39. 39.True or false: triangle, bar and arrows is the symbol for a bulb. (a) False (b) True
40. 40.True or false: a small empty box is the symbol for a resistor. (a) False (b) True

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