Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 333 · 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 cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
2. 2.True or false: a long and a short line is the symbol for a switch. (a) False (b) True
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
4. 4.Which drawing is the symbol for a battery? (a) a small empty box (b) a plain rectangle (c) triangle, bar and arrows (d) two or more cell symbols
5. 5.Which drawing is the symbol for an ammeter? (a) two equal parallel lines (b) a straight line (c) a plain rectangle (d) a circle with A inside
6. 6.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
7. 7.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) cell (c) diode (d) junction
9. 9.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) many long-short pairs (c) a plain rectangle (d) a small empty box
10. 10.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
11. 11.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) two equal parallel lines (c) a circle with V inside (d) one tall, one short bar
12. 12.Which drawing is the symbol for a cell? (a) a circle with M inside (b) a plain rectangle (c) a long and a short line (d) a circle with a cross
13. 13.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a circle with a cross (c) one tall, one short bar (d) a circle with an X in it
14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) voltmeter (c) diode (d) cell
15. 15.True or false: a long and a short line is the symbol for a bulb. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) battery (c) cell (d) motor
17. 17.True or false: a circle with A inside is the symbol for a capacitor. (a) True (b) False
18. 18.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) one tall, one short bar (c) a dot where wires meet (d) triangle, bar and arrows
19. 19.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) LED (b) wire (c) cell (d) capacitor
20. 20.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a plain rectangle (c) one tall, one short bar (d) a circle with V inside
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) switch (c) bulb (d) motor
22. 22.True or false: a straight line is the symbol for a wire. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) resistor (c) cell (d) bulb
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) switch (c) LED (d) diode
25. 25.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with a cross (c) a circle with A inside (d) many long-short pairs
26. 26.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
27. 27.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with V inside (c) a circle with M inside (d) a circle with an X in it
28. 28.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) capacitor (c) diode (d) voltmeter
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) motor (b) switch (c) battery (d) bulb
30. 30.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) resistor (c) battery (d) diode
31. 31.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) motor (c) cell (d) battery
32. 32.Which drawing is the symbol for a diode? (a) a long and a short line (b) a circle with V inside (c) triangle against a bar (d) one tall, one short bar
33. 33.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a straight line (c) triangle against a bar (d) a plain rectangle
34. 34.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
35. 35.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
36. 36.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a straight line (d) one tall, one short bar
37. 37.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) many long-short pairs (c) a circle with an X in it (d) a circle with A inside
38. 38.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) capacitor (c) ammeter (d) voltmeter
39. 39.True or false: a plain rectangle is the symbol for an ammeter. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) battery (c) diode (d) capacitor

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