Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 903 · 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 wire? (a) a straight line (b) one tall, one short bar (c) two equal parallel lines (d) a small empty box
2. 2.True or false: triangle against a bar is the symbol for a wire. (a) True (b) False
3. 3.True or false: a circle with M inside is the symbol for a bulb. (a) False (b) True
4. 4.✏️ 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
5. 5.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) bulb (b) capacitor (c) resistor (d) motor
6. 6.Which drawing is the symbol for a cell? (a) a small empty box (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with a cross
7. 7.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a plain rectangle (c) two or more cell symbols (d) two equal parallel lines
8. 8.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
10. 10.True or false: two equal parallel lines is the symbol for a battery. (a) False (b) True
11. 11.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
12. 12.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a line lifted at a gap (c) a plain rectangle (d) a circle with A inside
13. 13.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a small empty box (c) one tall, one short bar (d) a circle with A inside
14. 14.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) wavy lines (d) dotted circles
15. 15.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) triangle against a bar (c) a circle with A inside (d) triangle, bar and arrows
16. 16.Which drawing is the symbol for a bulb? (a) two equal parallel lines (b) a plain rectangle (c) a circle with a cross (d) a straight line
17. 17.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) switch (c) voltmeter (d) diode
19. 19.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) LED (c) battery (d) wire
20. 20.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a line lifted at a gap (c) a small empty box (d) a plain rectangle
21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) battery (c) motor (d) resistor
22. 22.True or false: a circle with an X in it is the symbol for a voltmeter. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) resistor (c) switch (d) motor
24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) cell (b) capacitor (c) diode (d) battery
25. 25.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
26. 26.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
27. 27.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) wire (c) diode (d) junction
28. 28.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
29. 29.True or false: triangle, bar and arrows is the symbol for a switch. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) capacitor (c) ammeter (d) resistor
31. 31.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) battery (c) capacitor (d) LED
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) capacitor (c) ammeter (d) wire
33. 33.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) motor (c) bulb (d) capacitor
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) diode (c) motor (d) wire
35. 35.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a line lifted at a gap (c) two equal parallel lines (d) a circle with M inside
36. 36.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) wire (c) switch (d) cell
37. 37.True or false: two or more cell symbols is the symbol for an ammeter. (a) False (b) True
38. 38.True or false: a small empty box is the symbol for a capacitor. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) junction (c) switch (d) ammeter
40. 40.True or false: a circle with V inside is the symbol for a capacitor. (a) False (b) True

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