Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 823 · 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 inside? (a) battery (b) capacitor (c) cell (d) ammeter
2. 2.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) ammeter (c) motor (d) voltmeter
3. 3.Which drawing is the symbol for a diode? (a) triangle against a bar (b) one tall, one short bar (c) a dot where wires meet (d) two or more cell symbols
4. 4.True or false: a circle with a cross is the symbol for a battery. (a) False (b) True
5. 5.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
6. 6.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) dotted circles (d) wavy lines
7. 7.Which drawing is the symbol for a cell? (a) triangle against a bar (b) a circle with a cross (c) a circle with V inside (d) a long and a short line
8. 8.Which drawing is the symbol for an LED? (a) many long-short pairs (b) a circle with V inside (c) a dot where wires meet (d) triangle, bar and arrows
9. 9.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
10. 10.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a straight line (c) a circle with V inside (d) a long and a short line
11. 11.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a dot where wires meet (c) two equal parallel lines (d) two or more cell symbols
12. 12.True or false: a small empty box is the symbol for a junction. (a) False (b) True
13. 13.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) motor (b) switch (c) voltmeter (d) resistor
15. 15.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
16. 16.True or false: a circle with V inside is the symbol for a battery. (a) False (b) True
17. 17.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with M inside (c) a circle with A inside (d) one tall, one short bar
18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) motor (c) battery (d) wire
19. 19.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) to hide the circuit (d) symbols are heavier
20. 20.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
21. 21.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
22. 22.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a long and a short line (c) two or more cell symbols (d) a circle with a cross
23. 23.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) the shorter line (d) neither line
24. 24.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) switch (b) battery (c) LED (d) cell
25. 25.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a plain rectangle (c) two or more cell symbols (d) a circle with a cross
26. 26.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
27. 27.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
28. 28.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
29. 29.True or false: a straight line is the symbol for a wire. (a) False (b) True
30. 30.Which drawing is the symbol for a wire? (a) a circle with V inside (b) two equal parallel lines (c) a straight line (d) a dot where wires meet
31. 31.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) battery (c) switch (d) motor
32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) ammeter (c) battery (d) voltmeter
33. 33.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
34. 34.True or false: a straight line is the symbol for a battery. (a) True (b) False
35. 35.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
36. 36.Which drawing is the symbol for a battery? (a) a small empty box (b) a line lifted at a gap (c) a circle with a cross (d) two or more cell symbols
37. 37.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) ammeter (b) cell (c) wire (d) junction
38. 38.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) diode (c) battery (d) capacitor
39. 39.True or false: many long-short pairs is the symbol for an LED. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) capacitor (c) wire (d) junction

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