Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 560 · 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, wires are usually drawn as … (a) dotted circles (b) straight lines (c) wavy lines (d) little stars
2. 2.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) many long-short pairs (c) a long and a short line (d) a line lifted at a gap
3. 3.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
5. 5.Which drawing is the symbol for a junction? (a) triangle, bar and arrows (b) a dot where wires meet (c) a circle with V inside (d) a straight line
6. 6.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) cell (c) ammeter (d) diode
7. 7.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) voltmeter (c) capacitor (d) resistor
8. 8.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
9. 9.✏️ 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
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) bulb (c) capacitor (d) motor
11. 11.Which drawing is the symbol for an LED? (a) a plain rectangle (b) triangle, bar and arrows (c) one tall, one short bar (d) a line lifted at a gap
12. 12.True or false: many long-short pairs is the symbol for a motor. (a) False (b) True
13. 13.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) capacitor (c) battery (d) switch
15. 15.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a straight line (c) triangle, bar and arrows (d) two or more cell symbols
16. 16.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) voltmeter (c) wire (d) LED
17. 17.Which drawing is the symbol for a wire? (a) a straight line (b) two equal parallel lines (c) a circle with M inside (d) many long-short pairs
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) wire (c) bulb (d) cell
19. 19.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with a cross (c) a circle with V inside (d) one tall, one short bar
20. 20.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
21. 21.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) bulb (c) ammeter (d) motor
23. 23.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) cell (c) resistor (d) battery
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) switch (c) voltmeter (d) resistor
25. 25.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) bulb (c) capacitor (d) cell
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) LED (c) ammeter (d) battery
28. 28.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) motor (c) capacitor (d) wire
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) junction (b) bulb (c) switch (d) ammeter
30. 30.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a small empty box (c) a long and a short line (d) a circle with V inside
31. 31.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
32. 32.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a long and a short line (c) a straight line (d) two equal parallel lines
33. 33.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) cell (d) LED
34. 34.True or false: one tall, one short bar is the symbol for a bulb. (a) True (b) False
35. 35.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a small empty box (c) two equal parallel lines (d) triangle, bar and arrows
36. 36.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) two equal parallel lines (c) a long and a short line (d) a circle with an X in it
37. 37.True or false: two or more cell symbols is the symbol for a diode. (a) True (b) False
38. 38.Which drawing is the symbol for a battery? (a) a circle with V inside (b) triangle, bar and arrows (c) a small empty box (d) many long-short pairs
39. 39.True or false: a small empty box is the symbol for a battery. (a) True (b) False
40. 40.True or false: a line lifted at a gap is the symbol for a bulb. (a) True (b) False

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