Electronics Worksheet: Circuit Symbols

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

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