Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 223 · 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 cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
2. 2.True or false: a circle with V inside is the symbol for a capacitor. (a) False (b) True
3. 3.True or false: a dot where wires meet is the symbol for a voltmeter. (a) True (b) False
4. 4.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
5. 5.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) symbols are heavier (d) to hide the circuit
6. 6.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) switch (c) wire (d) diode
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) wavy lines (d) dotted circles
8. 8.True or false: a dot where wires meet is the symbol for an ammeter. (a) False (b) True
9. 9.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) a plain rectangle (c) a line lifted at a gap (d) a circle with A inside
10. 10.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) motor (c) resistor (d) diode
12. 12.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) LED (b) bulb (c) motor (d) cell
13. 13.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) junction (c) resistor (d) capacitor
14. 14.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
15. 15.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
16. 16.Which drawing is the symbol for a resistor? (a) a circle with A inside (b) one tall, one short bar (c) a small empty box (d) a straight line
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) resistor (b) motor (c) junction (d) bulb
18. 18.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) triangle against a bar (c) a straight line (d) two equal parallel lines
19. 19.True or false: triangle against a bar is the symbol for a cell. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a straight line? (a) ammeter (b) motor (c) wire (d) cell
21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) battery (c) wire (d) diode
22. 22.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) two equal parallel lines (c) triangle against a bar (d) many long-short pairs
23. 23.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) a plain rectangle (c) a circle with an X in it (d) two equal parallel lines
24. 24.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a circle with M inside (c) a circle with A inside (d) a long and a short line
25. 25.True or false: two or more cell symbols is the symbol for a cell. (a) False (b) True
26. 26.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a straight line (c) a circle with V inside (d) a line lifted at a gap
27. 27.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) junction (c) LED (d) motor
28. 28.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) bulb (c) voltmeter (d) wire
29. 29.Which drawing is the symbol for a battery? (a) two equal parallel lines (b) two or more cell symbols (c) a long and a short line (d) a circle with A inside
30. 30.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) capacitor (c) LED (d) ammeter
31. 31.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
32. 32.Which drawing is the symbol for a battery? (a) one tall, one short bar (b) a circle with a cross (c) a straight line (d) many long-short pairs
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) voltmeter (b) bulb (c) switch (d) motor
34. 34.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
35. 35.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with a cross (c) many long-short pairs (d) a long and a short line
36. 36.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) diode (c) wire (d) capacitor
37. 37.True or false: triangle, bar and arrows is the symbol for a resistor. (a) True (b) False
38. 38.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) motor (c) cell (d) junction
40. 40.True or false: a straight line is the symbol for a wire. (a) False (b) True

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