Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 452 · 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.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
2. 2.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) wire (b) bulb (c) LED (d) capacitor
3. 3.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with a cross (c) one tall, one short bar (d) triangle, bar and arrows
4. 4.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) a long and a short line (c) one tall, one short bar (d) many long-short pairs
5. 5.Which drawing is the symbol for a wire? (a) a small empty box (b) two equal parallel lines (c) a plain rectangle (d) a straight line
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) neither line (d) both lines
7. 7.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) battery (c) switch (d) capacitor
8. 8.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) bulb (c) cell (d) voltmeter
10. 10.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) wire (b) LED (c) resistor (d) diode
11. 11.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) battery (c) switch (d) capacitor
12. 12.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
13. 13.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) junction (c) battery (d) LED
15. 15.True or false: a straight line is the symbol for a wire. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) switch (c) ammeter (d) resistor
17. 17.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
18. 18.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
19. 19.True or false: many long-short pairs is the symbol for a bulb. (a) True (b) False
20. 20.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) one tall, one short bar (c) a circle with an X in it (d) a circle with M inside
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) junction (c) diode (d) capacitor
22. 22.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with V inside (c) a line lifted at a gap (d) a straight line
23. 23.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) little stars (c) straight lines (d) wavy lines
24. 24.Which drawing is the symbol for a switch? (a) a circle with V inside (b) many long-short pairs (c) a circle with A inside (d) a line lifted at a gap
25. 25.True or false: triangle, bar and arrows is the symbol for a diode. (a) False (b) True
26. 26.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a small empty box (c) a long and a short line (d) triangle against a bar
27. 27.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) ammeter (c) capacitor (d) LED
28. 28.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
29. 29.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) two or more cell symbols (c) a line lifted at a gap (d) a circle with A inside
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) cell (c) motor (d) resistor
31. 31.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a circle with a cross (c) triangle, bar and arrows (d) a straight line
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) bulb (c) voltmeter (d) switch
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) motor (c) bulb (d) ammeter
34. 34.True or false: two equal parallel lines is the symbol for a voltmeter. (a) False (b) True
35. 35.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
36. 36.True or false: a circle with M inside is the symbol for an ammeter. (a) False (b) True
37. 37.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) many long-short pairs (c) a dot where wires meet (d) a circle with M inside
38. 38.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
39. 39.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) switch (c) resistor (d) diode

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