Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 344 · 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 plain rectangle? (a) LED (b) resistor (c) diode (d) wire
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) ammeter (c) LED (d) diode
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
4. 4.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
5. 5.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) wavy lines (d) little stars
6. 6.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) wire (c) LED (d) junction
7. 7.True or false: a plain rectangle is the symbol for a cell. (a) True (b) False
8. 8.True or false: a circle with a cross is the symbol for a switch. (a) False (b) True
9. 9.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) diode (c) resistor (d) motor
10. 10.True or false: two equal parallel lines is the symbol for an ammeter. (a) True (b) False
11. 11.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) triangle against a bar (c) a line lifted at a gap (d) one tall, one short bar
12. 12.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
13. 13.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
14. 14.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
15. 15.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
16. 16.True or false: a small empty box is the symbol for a switch. (a) True (b) False
17. 17.Which drawing is the symbol for a resistor? (a) a small empty box (b) a circle with A inside (c) two equal parallel lines (d) a long and a short line
18. 18.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
19. 19.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
20. 20.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
21. 21.Which drawing is the symbol for an LED? (a) two or more cell symbols (b) a circle with an X in it (c) a straight line (d) triangle, bar and arrows
22. 22.True or false: a dot where wires meet is the symbol for a voltmeter. (a) True (b) False
23. 23.Which drawing is the symbol for a motor? (a) a circle with a cross (b) a circle with M inside (c) a dot where wires meet (d) a plain rectangle
24. 24.Which drawing is the symbol for a wire? (a) a straight line (b) triangle against a bar (c) two or more cell symbols (d) a line lifted at a gap
25. 25.True or false: a circle with M inside is the symbol for a resistor. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) bulb (c) battery (d) junction
27. 27.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a dot where wires meet (c) two equal parallel lines (d) one tall, one short bar
28. 28.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) a dot where wires meet (c) a circle with an X in it (d) a circle with a cross
29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) bulb (b) resistor (c) LED (d) battery
30. 30.True or false: a circle with M inside is the symbol for a capacitor. (a) True (b) False
31. 31.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
32. 32.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) two equal parallel lines (c) a circle with an X in it (d) a circle with V inside
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) LED (c) battery (d) bulb
34. 34.True or false: a circle with an X in it is the symbol for a resistor. (a) True (b) False
35. 35.Which drawing is the symbol for a cell? (a) a circle with A inside (b) triangle, bar and arrows (c) one tall, one short bar (d) a circle with V inside
36. 36.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) LED (c) voltmeter (d) wire
37. 37.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) motor (c) LED (d) ammeter
38. 38.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
39. 39.Which drawing is the symbol for a battery? (a) a dot where wires meet (b) a long and a short line (c) two or more cell symbols (d) a circle with a cross
40. 40.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with a cross (c) a straight line (d) one tall, one short bar

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