Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 437 · 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 an LED? (a) a circle with M inside (b) a circle with a cross (c) a circle with A inside (d) triangle, bar and arrows
2. 2.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
3. 3.Which drawing is the symbol for a diode? (a) a circle with A inside (b) a circle with M inside (c) triangle against a bar (d) a straight line
4. 4.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
5. 5.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) wire (b) bulb (c) motor (d) voltmeter
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) motor (b) switch (c) wire (d) cell
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) dotted circles (d) straight lines
9. 9.Which drawing is the symbol for a motor? (a) a long and a short line (b) triangle, bar and arrows (c) a dot where wires meet (d) a circle with M inside
10. 10.Which drawing is the symbol for an ammeter? (a) a long and a short line (b) many long-short pairs (c) a circle with A inside (d) two or more cell symbols
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) resistor (c) capacitor (d) cell
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) switch (c) cell (d) resistor
13. 13.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) resistor (b) battery (c) cell (d) diode
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) LED (c) ammeter (d) diode
15. 15.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
16. 16.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) motor (c) bulb (d) resistor
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
19. 19.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a line lifted at a gap (c) a circle with V inside (d) a straight line
20. 20.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) wire (c) resistor (d) motor
22. 22.True or false: a line lifted at a gap is the symbol for an ammeter. (a) True (b) False
23. 23.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) battery (b) resistor (c) motor (d) LED
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) LED (c) voltmeter (d) bulb
25. 25.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) diode (c) ammeter (d) battery
26. 26.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) junction (b) ammeter (c) wire (d) LED
27. 27.True or false: a circle with a cross is the symbol for a diode. (a) False (b) True
28. 28.Which drawing is the symbol for a wire? (a) a dot where wires meet (b) a circle with a cross (c) a straight line (d) many long-short pairs
29. 29.True or false: triangle, bar and arrows is the symbol for a bulb. (a) True (b) False
30. 30.True or false: two equal parallel lines is the symbol for a capacitor. (a) True (b) False
31. 31.True or false: two or more cell symbols is the symbol for a switch. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) cell (c) junction (d) voltmeter
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) bulb (c) voltmeter (d) battery
34. 34.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a plain rectangle (c) a circle with V inside (d) one tall, one short bar
35. 35.True or false: a circle with V inside is the symbol for a bulb. (a) False (b) True
36. 36.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) voltmeter (c) ammeter (d) junction
38. 38.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
39. 39.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) diode (c) cell (d) capacitor

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