Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 208 · 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 two equal parallel lines? (a) bulb (b) diode (c) voltmeter (d) capacitor
2. 2.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) resistor (c) switch (d) LED
4. 4.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
5. 5.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) resistor (b) motor (c) wire (d) switch
7. 7.True or false: a straight line is the symbol for a wire. (a) True (b) False
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
9. 9.Which drawing is the symbol for a switch? (a) a long and a short line (b) two or more cell symbols (c) a line lifted at a gap (d) a straight line
10. 10.Which drawing is the symbol for a capacitor? (a) a small empty box (b) a plain rectangle (c) a line lifted at a gap (d) two equal parallel lines
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) motor (c) battery (d) cell
13. 13.True or false: a small empty box is the symbol for a diode. (a) True (b) False
14. 14.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
15. 15.Which drawing is the symbol for a voltmeter? (a) triangle, bar and arrows (b) a circle with V inside (c) many long-short pairs (d) a circle with M inside
16. 16.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
17. 17.True or false: a circle with M inside is the symbol for a voltmeter. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) bulb (c) wire (d) capacitor
19. 19.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a circle with an X in it (c) many long-short pairs (d) a long and a short line
20. 20.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) resistor (c) motor (d) diode
21. 21.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) switch (c) cell (d) wire
22. 22.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a circle with A inside (c) a long and a short line (d) a straight line
23. 23.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
24. 24.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
25. 25.True or false: a circle with an X in it is the symbol for a capacitor. (a) True (b) False
26. 26.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a long and a short line (c) a plain rectangle (d) two equal parallel lines
27. 27.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
28. 28.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
29. 29.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
30. 30.Which drawing is the symbol for a motor? (a) a circle with a cross (b) a plain rectangle (c) many long-short pairs (d) a circle with M inside
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) battery (c) junction (d) ammeter
32. 32.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with A inside (d) a dot where wires meet
33. 33.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) one tall, one short bar (c) a straight line (d) many long-short pairs
34. 34.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) wire (b) cell (c) switch (d) battery
35. 35.Which drawing is the symbol for a junction? (a) a small empty box (b) a circle with an X in it (c) one tall, one short bar (d) a dot where wires meet
36. 36.True or false: triangle against a bar is the symbol for an ammeter. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) battery (c) bulb (d) voltmeter
38. 38.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) one tall, one short bar (c) triangle, bar and arrows (d) a long and a short line
39. 39.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
40. 40.Which drawing is the symbol for a diode? (a) a line lifted at a gap (b) triangle, bar and arrows (c) triangle against a bar (d) a circle with A inside

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