Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 731 · 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, which part is drawn as a circle with a cross? (a) resistor (b) switch (c) bulb (d) cell
2. 2.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) bulb (b) motor (c) cell (d) wire
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
4. 4.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) resistor (c) bulb (d) capacitor
5. 5.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) a long and a short line (c) many long-short pairs (d) triangle against a bar
6. 6.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a circle with V inside (c) a circle with A inside (d) a plain rectangle
7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) LED (c) bulb (d) wire
8. 8.Which drawing is the symbol for a cell? (a) many long-short pairs (b) triangle against a bar (c) a small empty box (d) one tall, one short bar
9. 9.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
10. 10.True or false: a small empty box is the symbol for a wire. (a) True (b) False
11. 11.Which drawing is the symbol for a motor? (a) a straight line (b) triangle against a bar (c) a line lifted at a gap (d) a circle with M inside
12. 12.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) resistor (c) switch (d) battery
13. 13.Which drawing is the symbol for a cell? (a) a small empty box (b) two or more cell symbols (c) a long and a short line (d) two equal parallel lines
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) junction (c) motor (d) LED
15. 15.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) capacitor (b) LED (c) resistor (d) junction
16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) battery (c) wire (d) motor
17. 17.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) switch (c) wire (d) resistor
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) battery (c) junction (d) voltmeter
19. 19.True or false: a circle with an X in it is the symbol for a motor. (a) True (b) False
20. 20.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) a circle with V inside (c) two or more cell symbols (d) two equal parallel lines
21. 21.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) LED (b) switch (c) junction (d) wire
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) diode (c) capacitor (d) junction
23. 23.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
24. 24.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a plain rectangle (c) a circle with A inside (d) a long and a short line
25. 25.Which drawing is the symbol for a diode? (a) triangle, bar and arrows (b) triangle against a bar (c) a dot where wires meet (d) a plain rectangle
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) diode (c) bulb (d) LED
27. 27.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
28. 28.True or false: a circle with M inside is the symbol for a battery. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) capacitor (d) ammeter
30. 30.Which drawing is the symbol for a resistor? (a) a long and a short line (b) a plain rectangle (c) many long-short pairs (d) two equal parallel lines
31. 31.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
32. 32.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) cell (c) switch (d) voltmeter
33. 33.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
34. 34.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
35. 35.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) LED (c) ammeter (d) diode
36. 36.True or false: a circle with M inside is the symbol for a cell. (a) True (b) False
37. 37.Which drawing is the symbol for a voltmeter? (a) two equal parallel lines (b) a circle with V inside (c) triangle, bar and arrows (d) a circle with an X in it
38. 38.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
39. 39.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
40. 40.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True

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