Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 167 · 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.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) neither line (d) both lines
3. 3.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with A inside (c) two equal parallel lines (d) a circle with V inside
4. 4.True or false: a circle with M inside is the symbol for a resistor. (a) False (b) True
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) wavy lines (c) straight lines (d) dotted circles
6. 6.True or false: two or more cell symbols is the symbol for a wire. (a) False (b) True
7. 7.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a circle with an X in it (c) a dot where wires meet (d) triangle against a bar
8. 8.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with an X in it (c) many long-short pairs (d) a circle with A inside
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) wire (c) voltmeter (d) cell
10. 10.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with an X in it (c) a circle with V inside (d) a circle with a cross
11. 11.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) LED (c) voltmeter (d) battery
12. 12.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) voltmeter (b) bulb (c) switch (d) LED
13. 13.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) junction (c) ammeter (d) cell
14. 14.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) a circle with A inside (c) triangle against a bar (d) a straight line
15. 15.Which drawing is the symbol for a capacitor? (a) many long-short pairs (b) a circle with V inside (c) a plain rectangle (d) two equal parallel lines
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) ammeter (c) battery (d) junction
17. 17.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a straight line (c) a long and a short line (d) a plain rectangle
18. 18.Which drawing is the symbol for a junction? (a) a circle with M inside (b) a circle with an X in it (c) a circle with V inside (d) a dot where wires meet
19. 19.True or false: a plain rectangle is the symbol for a bulb. (a) False (b) True
20. 20.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) LED (c) ammeter (d) battery
22. 22.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) diode (d) junction
24. 24.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a circle with an X in it (d) a plain rectangle
25. 25.Which drawing is the symbol for a resistor? (a) a small empty box (b) one tall, one short bar (c) a long and a short line (d) a dot where wires meet
26. 26.Which drawing is the symbol for a motor? (a) a long and a short line (b) a circle with M inside (c) a straight line (d) two equal parallel lines
27. 27.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
28. 28.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
29. 29.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a circle with A inside (c) two or more cell symbols (d) a circle with a cross
30. 30.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
31. 31.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a plain rectangle (c) a circle with a cross (d) a small empty box
32. 32.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a plain rectangle (c) a circle with a cross (d) two equal parallel lines
33. 33.True or false: a dot where wires meet is the symbol for a cell. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) LED (c) resistor (d) diode
35. 35.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) capacitor (d) motor
36. 36.True or false: a circle with A inside is the symbol for a battery. (a) True (b) False
37. 37.Which drawing is the symbol for a cell? (a) a straight line (b) two equal parallel lines (c) triangle against a bar (d) one tall, one short bar
38. 38.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) motor (c) cell (d) battery
40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) LED (c) diode (d) ammeter

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