Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 692 · 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 triangle, bar and arrows? (a) voltmeter (b) wire (c) LED (d) diode
2. 2.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) triangle against a bar (c) a plain rectangle (d) a long and a short line
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) symbols are heavier (d) quick and clear for all
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the shorter line (d) the longer line
5. 5.True or false: one tall, one short bar is the symbol for a junction. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) junction (c) voltmeter (d) wire
7. 7.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) battery (d) wire
8. 8.True or false: a circle with a cross is the symbol for a motor. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) motor (c) capacitor (d) bulb
10. 10.Which drawing is the symbol for a motor? (a) a circle with A inside (b) two or more cell symbols (c) a small empty box (d) a circle with M inside
11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) switch (c) battery (d) bulb
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) voltmeter (d) diode
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) junction (c) battery (d) voltmeter
14. 14.True or false: a small empty box is the symbol for a capacitor. (a) True (b) False
15. 15.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) switch (c) ammeter (d) junction
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) capacitor (c) switch (d) cell
18. 18.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a straight line (c) a circle with M inside (d) a small empty box
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) switch (c) motor (d) cell
20. 20.Which drawing is the symbol for an LED? (a) a long and a short line (b) many long-short pairs (c) a circle with M inside (d) triangle, bar and arrows
21. 21.True or false: triangle against a bar is the symbol for a junction. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) wire (c) capacitor (d) resistor
23. 23.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a dot where wires meet (c) one tall, one short bar (d) a circle with a cross
24. 24.True or false: two equal parallel lines is the symbol for a wire. (a) False (b) True
25. 25.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
26. 26.True or false: a circle with A inside is the symbol for a capacitor. (a) True (b) False
27. 27.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
28. 28.Which drawing is the symbol for a voltmeter? (a) many long-short pairs (b) a circle with V inside (c) a plain rectangle (d) triangle, bar and arrows
29. 29.True or false: many long-short pairs is the symbol for a motor. (a) False (b) True
30. 30.True or false: triangle against a bar is the symbol for a battery. (a) False (b) True
31. 31.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a plain rectangle (c) a circle with A inside (d) two equal parallel lines
32. 32.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a plain rectangle (c) many long-short pairs (d) a circle with a cross
33. 33.True or false: triangle against a bar is the symbol for a bulb. (a) False (b) True
34. 34.True or false: a line lifted at a gap is the symbol for a diode. (a) True (b) False
35. 35.Which drawing is the symbol for a cell? (a) a small empty box (b) a straight line (c) a circle with M inside (d) a long and a short line
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) switch (c) voltmeter (d) bulb
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) LED (c) voltmeter (d) motor
38. 38.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a dot where wires meet (c) a circle with V inside (d) a circle with M inside
39. 39.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) wire (c) cell (d) battery
40. 40.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a circle with an X in it (c) two or more cell symbols (d) a long and a short line

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