Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 668 · 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 cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) the longer line (d) neither line
2. 2.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
3. 3.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) triangle, bar and arrows (c) a straight line (d) a circle with V inside
4. 4.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) voltmeter (c) wire (d) battery
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
6. 6.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
7. 7.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) wire (c) battery (d) resistor
8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) switch (c) junction (d) diode
9. 9.Which drawing is the symbol for a switch? (a) two or more cell symbols (b) a straight line (c) two equal parallel lines (d) a line lifted at a gap
10. 10.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) ammeter (c) capacitor (d) junction
12. 12.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
13. 13.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) cell (c) switch (d) battery
14. 14.True or false: a circle with a cross is the symbol for a resistor. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) battery (c) bulb (d) ammeter
16. 16.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
17. 17.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) one tall, one short bar (c) a straight line (d) many long-short pairs
18. 18.True or false: a circle with V inside is the symbol for a switch. (a) True (b) False
19. 19.Which drawing is the symbol for a diode? (a) a circle with M inside (b) triangle, bar and arrows (c) triangle against a bar (d) a dot where wires meet
20. 20.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with an X in it (c) many long-short pairs (d) triangle against a bar
21. 21.True or false: a circle with A inside is the symbol for a resistor. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) ammeter (c) voltmeter (d) battery
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) resistor (c) capacitor (d) wire
24. 24.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a plain rectangle (c) triangle against a bar (d) one tall, one short bar
25. 25.Which drawing is the symbol for a motor? (a) a long and a short line (b) two or more cell symbols (c) two equal parallel lines (d) a circle with M inside
26. 26.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a small empty box (c) two or more cell symbols (d) a long and a short line
27. 27.Which drawing is the symbol for a wire? (a) triangle against a bar (b) two or more cell symbols (c) a plain rectangle (d) a straight line
28. 28.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) battery (c) LED (d) bulb
30. 30.Which drawing is the symbol for an LED? (a) a small empty box (b) a straight line (c) a dot where wires meet (d) triangle, bar and arrows
31. 31.True or false: a straight line is the symbol for a capacitor. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) cell (b) switch (c) bulb (d) LED
33. 33.True or false: a circle with A inside is the symbol for a diode. (a) True (b) False
34. 34.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a circle with an X in it (c) a dot where wires meet (d) a long and a short line
35. 35.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a circle with an X in it (c) a straight line (d) a long and a short line
36. 36.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
37. 37.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
38. 38.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
39. 39.True or false: a straight line is the symbol for a battery. (a) True (b) False
40. 40.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True

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