Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 982 · 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.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) triangle, bar and arrows (c) a circle with V inside (d) a long and a short line
2. 2.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
3. 3.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) one tall, one short bar (c) a circle with an X in it (d) a circle with M inside
4. 4.Which drawing is the symbol for a resistor? (a) one tall, one short bar (b) many long-short pairs (c) a plain rectangle (d) two or more cell symbols
5. 5.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) quick and clear for all (d) to hide the circuit
6. 6.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
7. 7.True or false: a dot where wires meet is the symbol for a resistor. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) ammeter (c) LED (d) cell
9. 9.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a circle with M inside (d) two equal parallel lines
10. 10.True or false: a small empty box is the symbol for a diode. (a) True (b) False
11. 11.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
12. 12.Which drawing is the symbol for a cell? (a) a small empty box (b) triangle, bar and arrows (c) a line lifted at a gap (d) one tall, one short bar
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) battery (d) junction
14. 14.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) ammeter (b) cell (c) battery (d) bulb
16. 16.True or false: triangle against a bar is the symbol for an LED. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) battery (b) diode (c) resistor (d) ammeter
18. 18.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a straight line (c) triangle against a bar (d) a line lifted at a gap
19. 19.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) a long and a short line (c) two equal parallel lines (d) many long-short pairs
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) resistor (c) voltmeter (d) capacitor
21. 21.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
22. 22.Which drawing is the symbol for a junction? (a) a plain rectangle (b) a line lifted at a gap (c) a dot where wires meet (d) triangle, bar and arrows
23. 23.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a plain rectangle (c) two equal parallel lines (d) a circle with an X in it
24. 24.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) wire (c) voltmeter (d) ammeter
25. 25.✏️ In a circuit diagram, wires are usually drawn as … (a) dotted circles (b) wavy lines (c) little stars (d) straight lines
26. 26.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) bulb (c) capacitor (d) switch
27. 27.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a line lifted at a gap (c) a straight line (d) triangle, bar and arrows
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) cell (b) motor (c) switch (d) LED
29. 29.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
30. 30.True or false: a circle with A inside is the symbol for an LED. (a) False (b) True
31. 31.True or false: triangle, bar and arrows is the symbol for a switch. (a) False (b) True
32. 32.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) resistor (c) diode (d) motor
33. 33.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) bulb (b) capacitor (c) cell (d) LED
34. 34.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) ammeter (b) battery (c) junction (d) diode
35. 35.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with a cross (c) a straight line (d) a circle with V inside
36. 36.True or false: a circle with an X in it is the symbol for an LED. (a) False (b) True
37. 37.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
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 battery. (a) True (b) False
40. 40.True or false: triangle, bar and arrows is the symbol for a motor. (a) False (b) True

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