Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 287 · 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) many long-short pairs (b) a circle with V inside (c) a long and a short line (d) two equal parallel lines
2. 2.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) symbols are heavier (d) to make it colourful
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) bulb (b) LED (c) voltmeter (d) ammeter
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
5. 5.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) LED (b) junction (c) motor (d) voltmeter
7. 7.Which drawing is the symbol for a junction? (a) two equal parallel lines (b) a dot where wires meet (c) two or more cell symbols (d) a circle with M inside
8. 8.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) junction (c) switch (d) LED
9. 9.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) a circle with an X in it (c) a long and a short line (d) triangle against a bar
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) the shorter line (d) neither line
11. 11.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a straight line (c) triangle, bar and arrows (d) two equal parallel lines
12. 12.True or false: a circle with an X in it is the symbol for a diode. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) cell (c) battery (d) junction
14. 14.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
15. 15.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a straight line (c) a circle with V inside (d) a long and a short line
16. 16.True or false: a plain rectangle is the symbol for a battery. (a) False (b) True
17. 17.Which drawing is the symbol for a cell? (a) a circle with M inside (b) a circle with a cross (c) a long and a short line (d) a circle with an X in it
18. 18.True or false: a straight line is the symbol for a wire. (a) True (b) False
19. 19.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) junction (c) cell (d) LED
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) bulb (c) voltmeter (d) diode
22. 22.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) resistor (c) LED (d) motor
23. 23.Which drawing is the symbol for a switch? (a) a straight line (b) a circle with A inside (c) a line lifted at a gap (d) many long-short pairs
24. 24.Which drawing is the symbol for a cell? (a) a dot where wires meet (b) many long-short pairs (c) two or more cell symbols (d) one tall, one short bar
25. 25.True or false: two equal parallel lines is the symbol for a voltmeter. (a) False (b) True
26. 26.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) battery (c) wire (d) junction
28. 28.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) LED (c) capacitor (d) cell
29. 29.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) junction (c) cell (d) battery
30. 30.Which drawing is the symbol for a battery? (a) a circle with M inside (b) a circle with A inside (c) two equal parallel lines (d) many long-short pairs
31. 31.True or false: triangle against a bar is the symbol for a voltmeter. (a) True (b) False
32. 32.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
33. 33.Which drawing is the symbol for a motor? (a) triangle, bar and arrows (b) a circle with A inside (c) a circle with M inside (d) one tall, one short bar
34. 34.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) bulb (c) resistor (d) wire
35. 35.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) wire (c) bulb (d) capacitor
36. 36.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
37. 37.True or false: a long and a short line is the symbol for a wire. (a) False (b) True
38. 38.True or false: a circle with an X in it is the symbol for a capacitor. (a) False (b) True
39. 39.True or false: a small empty box is the symbol for a motor. (a) True (b) False
40. 40.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False

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