Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 52 · 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 circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) bulb (c) junction (d) switch
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) LED (c) battery (d) bulb
4. 4.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with V inside (c) a circle with an X in it (d) triangle, bar and arrows
5. 5.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with A inside (c) a circle with V inside (d) a circle with M inside
6. 6.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with M inside (c) a plain rectangle (d) a long and a short line
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
8. 8.True or false: two or more cell symbols is the symbol for a bulb. (a) True (b) False
9. 9.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a circle with M inside (c) a circle with a cross (d) a line lifted at a gap
10. 10.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
12. 12.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) diode (b) battery (c) switch (d) resistor
13. 13.Which drawing is the symbol for a diode? (a) a circle with V inside (b) a circle with A inside (c) a line lifted at a gap (d) triangle against a bar
14. 14.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
15. 15.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a dot where wires meet (c) many long-short pairs (d) a circle with M inside
16. 16.Which drawing is the symbol for a battery? (a) a plain rectangle (b) a circle with an X in it (c) triangle, bar and arrows (d) two or more cell symbols
17. 17.True or false: a straight line is the symbol for a wire. (a) True (b) False
18. 18.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
19. 19.True or false: triangle, bar and arrows is the symbol for a junction. (a) True (b) False
20. 20.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) switch (c) battery (d) voltmeter
22. 22.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) switch (c) battery (d) capacitor
23. 23.True or false: a small empty box is the symbol for a motor. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) cell (c) bulb (d) resistor
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) voltmeter (c) motor (d) diode
26. 26.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) a circle with V inside (c) many long-short pairs (d) a circle with M inside
27. 27.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) resistor (c) motor (d) capacitor
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) ammeter (c) motor (d) cell
29. 29.True or false: a long and a short line is the symbol for a switch. (a) True (b) False
30. 30.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) junction (c) diode (d) capacitor
32. 32.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) cell (c) battery (d) LED
34. 34.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a small empty box (c) two equal parallel lines (d) a circle with an X in it
35. 35.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
36. 36.True or false: triangle, bar and arrows is the symbol for a battery. (a) True (b) False
37. 37.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) LED (c) capacitor (d) resistor
38. 38.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
39. 39.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) battery (c) switch (d) resistor

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