Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 86 · 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 straight line? (a) wire (b) ammeter (c) capacitor (d) motor
2. 2.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) bulb (d) ammeter
3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) bulb (c) battery (d) cell
4. 4.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) voltmeter (c) battery (d) bulb
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) neither line (d) the longer line
6. 6.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) straight lines (d) little stars
8. 8.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) junction (c) switch (d) resistor
9. 9.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) cell (c) motor (d) battery
10. 10.Which drawing is the symbol for a resistor? (a) triangle against a bar (b) a plain rectangle (c) two equal parallel lines (d) a circle with an X in it
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) bulb (c) motor (d) diode
12. 12.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) two equal parallel lines (c) one tall, one short bar (d) triangle, bar and arrows
13. 13.True or false: a circle with A inside is the symbol for a motor. (a) True (b) False
14. 14.Which drawing is the symbol for a junction? (a) two or more cell symbols (b) a circle with A inside (c) a dot where wires meet (d) triangle against a bar
15. 15.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) switch (c) capacitor (d) voltmeter
17. 17.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
18. 18.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
19. 19.Which drawing is the symbol for a battery? (a) a circle with M inside (b) a circle with A inside (c) a line lifted at a gap (d) two or more cell symbols
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) junction (b) bulb (c) diode (d) battery
21. 21.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
22. 22.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
23. 23.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) triangle, bar and arrows (c) a plain rectangle (d) a dot where wires meet
24. 24.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
25. 25.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) motor (b) bulb (c) junction (d) resistor
27. 27.True or false: one tall, one short bar is the symbol for a resistor. (a) False (b) True
28. 28.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
29. 29.Which drawing is the symbol for a bulb? (a) a straight line (b) a dot where wires meet (c) a circle with M inside (d) a circle with a cross
30. 30.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) quick and clear for all (d) to make it colourful
31. 31.True or false: a long and a short line is the symbol for a switch. (a) False (b) True
32. 32.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
33. 33.Which drawing is the symbol for a bulb? (a) a straight line (b) two equal parallel lines (c) a circle with an X in it (d) a line lifted at a gap
34. 34.True or false: two or more cell symbols is the symbol for a voltmeter. (a) False (b) True
35. 35.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) triangle, bar and arrows (c) a circle with V inside (d) a long and a short line
36. 36.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a circle with A inside (c) triangle against a bar (d) many long-short pairs
37. 37.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) junction (b) cell (c) wire (d) switch
38. 38.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) wire (b) resistor (c) bulb (d) LED
39. 39.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
40. 40.Which drawing is the symbol for a resistor? (a) a circle with an X in it (b) a dot where wires meet (c) a small empty box (d) a long and a short line

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