Electronics Worksheet: Circuit Symbols

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

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