Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 148 · 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 V inside? (a) wire (b) battery (c) voltmeter (d) junction
2. 2.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) wire (c) LED (d) diode
3. 3.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) cell (c) bulb (d) ammeter
4. 4.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
5. 5.True or false: a dot where wires meet is the symbol for a battery. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) resistor (c) ammeter (d) bulb
7. 7.Which drawing is the symbol for a switch? (a) one tall, one short bar (b) a circle with an X in it (c) two or more cell symbols (d) a line lifted at a gap
8. 8.True or false: a circle with M inside is the symbol for a wire. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) battery (c) cell (d) bulb
10. 10.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) two or more cell symbols (c) a circle with A inside (d) a circle with M inside
11. 11.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False
12. 12.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) a circle with V inside (c) a small empty box (d) a straight line
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, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
15. 15.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
16. 16.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
17. 17.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
18. 18.Which drawing is the symbol for a wire? (a) a circle with V inside (b) a long and a short line (c) a plain rectangle (d) a straight line
19. 19.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to hide the circuit (d) to make it colourful
20. 20.True or false: a straight line is the symbol for a junction. (a) True (b) False
21. 21.True or false: triangle against a bar is the symbol for a resistor. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) switch (c) wire (d) voltmeter
23. 23.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) wire (c) LED (d) battery
24. 24.True or false: a small empty box is the symbol for a voltmeter. (a) True (b) False
25. 25.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) a circle with a cross (c) a dot where wires meet (d) two or more cell symbols
26. 26.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a circle with V inside (c) a circle with A inside (d) many long-short pairs
27. 27.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
28. 28.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
29. 29.True or false: many long-short pairs is the symbol for a switch. (a) False (b) True
30. 30.Which drawing is the symbol for an LED? (a) triangle against a bar (b) many long-short pairs (c) a circle with an X in it (d) triangle, bar and arrows
31. 31.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) voltmeter (b) motor (c) wire (d) junction
33. 33.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) voltmeter (b) cell (c) battery (d) ammeter
34. 34.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
35. 35.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a small empty box (c) a circle with V inside (d) a circle with a cross
36. 36.True or false: a circle with A inside is the symbol for a voltmeter. (a) True (b) False
37. 37.True or false: a dot where wires meet is the symbol for an ammeter. (a) False (b) True
38. 38.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) a small empty box (c) a long and a short line (d) two or more cell symbols
39. 39.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) two or more cell symbols (c) two equal parallel lines (d) a plain rectangle
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) cell (c) bulb (d) LED

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