Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 573 · 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.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with a cross (c) a straight line (d) a line lifted at a gap
2. 2.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) switch (c) junction (d) cell
3. 3.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
4. 4.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) junction (b) bulb (c) diode (d) resistor
5. 5.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a circle with M inside (c) a line lifted at a gap (d) a dot where wires meet
6. 6.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) ammeter (b) bulb (c) battery (d) resistor
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
8. 8.True or false: one tall, one short bar is the symbol for an LED. (a) True (b) False
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
10. 10.Which drawing is the symbol for a switch? (a) a circle with a cross (b) triangle, bar and arrows (c) two equal parallel lines (d) a line lifted at a gap
11. 11.Which drawing is the symbol for an LED? (a) a circle with A inside (b) a long and a short line (c) triangle, bar and arrows (d) a dot where wires meet
12. 12.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a plain rectangle (c) a straight line (d) a dot where wires meet
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) cell (c) bulb (d) wire
14. 14.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a plain rectangle (c) a circle with an X in it (d) two equal parallel lines
15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) battery (c) resistor (d) wire
16. 16.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) LED (b) motor (c) cell (d) voltmeter
17. 17.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
18. 18.Which drawing is the symbol for a resistor? (a) a small empty box (b) many long-short pairs (c) a long and a short line (d) a circle with M inside
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) battery (b) voltmeter (c) motor (d) ammeter
20. 20.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) bulb (c) LED (d) junction
21. 21.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) switch (c) wire (d) cell
23. 23.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) cell (c) switch (d) junction
25. 25.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
26. 26.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) motor (c) wire (d) battery
28. 28.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) one tall, one short bar (c) a circle with an X in it (d) triangle against a bar
29. 29.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) voltmeter (c) resistor (d) diode
30. 30.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a dot where wires meet (c) one tall, one short bar (d) a plain rectangle
31. 31.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
32. 32.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
33. 33.True or false: one tall, one short bar is the symbol for a battery. (a) False (b) True
34. 34.True or false: a straight line is the symbol for a junction. (a) True (b) False
35. 35.True or false: a straight line is the symbol for a motor. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) cell (c) bulb (d) diode
37. 37.Which drawing is the symbol for a cell? (a) triangle against a bar (b) a long and a short line (c) a circle with A inside (d) a circle with M inside
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) voltmeter (b) cell (c) motor (d) bulb
39. 39.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a small empty box (c) triangle, bar and arrows (d) a circle with A inside
40. 40.True or false: a dot where wires meet is the symbol for a diode. (a) False (b) True

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