Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 799 · 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 a circle with a cross? (a) switch (b) cell (c) bulb (d) junction
2. 2.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
3. 3.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to hide the circuit (d) to make it colourful
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) ammeter (c) junction (d) switch
5. 5.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a plain rectangle (c) a straight line (d) one tall, one short bar
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) diode (c) battery (d) cell
7. 7.Which drawing is the symbol for a junction? (a) a straight line (b) a small empty box (c) triangle, bar and arrows (d) a dot where wires meet
8. 8.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a line lifted at a gap (c) triangle, bar and arrows (d) a straight line
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
10. 10.True or false: one tall, one short bar is the symbol for a junction. (a) True (b) False
11. 11.Which drawing is the symbol for a wire? (a) a straight line (b) two equal parallel lines (c) a circle with an X in it (d) one tall, one short bar
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) motor (c) wire (d) voltmeter
13. 13.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
14. 14.True or false: one tall, one short bar is the symbol for a wire. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) battery (c) motor (d) resistor
16. 16.True or false: a line lifted at a gap is the symbol for a resistor. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) bulb (d) diode
18. 18.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 a cross (d) a circle with A inside
19. 19.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with M inside (c) a circle with an X in it (d) a circle with a cross
20. 20.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) bulb (b) switch (c) junction (d) battery
21. 21.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a circle with a cross (c) triangle against a bar (d) a long and a short line
22. 22.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) bulb (c) switch (d) cell
23. 23.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
24. 24.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) a long and a short line (c) many long-short pairs (d) a line lifted at a gap
25. 25.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) wire (c) bulb (d) LED
27. 27.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a small empty box (c) two or more cell symbols (d) a line lifted at a gap
28. 28.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) bulb (c) resistor (d) cell
29. 29.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
30. 30.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
31. 31.True or false: a long and a short line is the symbol for a capacitor. (a) False (b) True
32. 32.True or false: a small empty box is the symbol for a wire. (a) True (b) False
33. 33.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
34. 34.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
35. 35.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
36. 36.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
37. 37.Which drawing is the symbol for a cell? (a) a plain rectangle (b) two equal parallel lines (c) a line lifted at a gap (d) one tall, one short bar
38. 38.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) LED (c) switch (d) voltmeter
39. 39.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) switch (c) bulb (d) cell

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