Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 374 · 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.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
2. 2.Which drawing is the symbol for a bulb? (a) a plain rectangle (b) a circle with A inside (c) a circle with an X in it (d) a long and a short line
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) LED (c) capacitor (d) motor
4. 4.Which drawing is the symbol for a diode? (a) a circle with A inside (b) a long and a short line (c) triangle against a bar (d) a circle with M inside
5. 5.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) ammeter (b) battery (c) bulb (d) capacitor
6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) voltmeter (c) cell (d) bulb
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
8. 8.Which drawing is the symbol for a junction? (a) a circle with a cross (b) a plain rectangle (c) a dot where wires meet (d) a circle with an X in it
9. 9.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
10. 10.Which drawing is the symbol for a capacitor? (a) a plain rectangle (b) a small empty box (c) two equal parallel lines (d) one tall, one short bar
11. 11.Which drawing is the symbol for a wire? (a) a small empty box (b) triangle against a bar (c) a straight line (d) a circle with A inside
12. 12.Which drawing is the symbol for a battery? (a) a circle with M inside (b) two or more cell symbols (c) a dot where wires meet (d) triangle, bar and arrows
13. 13.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) ammeter (b) LED (c) motor (d) junction
15. 15.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) bulb (c) diode (d) switch
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) wire (c) motor (d) voltmeter
18. 18.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) two equal parallel lines (c) many long-short pairs (d) a long and a short line
19. 19.True or false: a line lifted at a gap is the symbol for a capacitor. (a) False (b) True
20. 20.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a small empty box (c) a circle with M inside (d) a circle with V inside
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) bulb (b) voltmeter (c) battery (d) motor
22. 22.True or false: one tall, one short bar is the symbol for an ammeter. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) junction (c) switch (d) cell
24. 24.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) wire (c) battery (d) voltmeter
25. 25.True or false: a small empty box is the symbol for a capacitor. (a) False (b) True
26. 26.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a small empty box (c) a circle with A inside (d) a dot where wires meet
27. 27.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a long and a short line (d) a circle with V inside
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) cell (c) switch (d) motor
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) motor (c) bulb (d) ammeter
30. 30.True or false: a straight line is the symbol for a wire. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) battery (c) motor (d) resistor
32. 32.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
33. 33.Which drawing is the symbol for a battery? (a) many long-short pairs (b) triangle, bar and arrows (c) a circle with a cross (d) a circle with A inside
34. 34.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
35. 35.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
36. 36.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
37. 37.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
38. 38.Which drawing is the symbol for a motor? (a) a circle with a cross (b) one tall, one short bar (c) a small empty box (d) a circle with M inside
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) cell (c) bulb (d) battery
40. 40.True or false: triangle against a bar is the symbol for a switch. (a) False (b) True

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