Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 973 · 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 diode? (a) two equal parallel lines (b) triangle, bar and arrows (c) triangle against a bar (d) a long and a short line
2. 2.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a circle with A inside (c) a dot where wires meet (d) a straight line
3. 3.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) junction (b) switch (c) battery (d) bulb
4. 4.True or false: many long-short pairs is the symbol for a resistor. (a) False (b) True
5. 5.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) bulb (b) resistor (c) LED (d) motor
7. 7.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) motor (b) resistor (c) capacitor (d) wire
9. 9.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) neither line (c) both lines (d) the longer line
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) voltmeter (c) ammeter (d) diode
11. 11.✏️ 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
12. 12.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) a straight line (c) two equal parallel lines (d) a circle with a cross
13. 13.True or false: a dot where wires meet is the symbol for a motor. (a) False (b) True
14. 14.Which drawing is the symbol for a switch? (a) triangle against a bar (b) two or more cell symbols (c) a circle with V inside (d) a line lifted at a gap
15. 15.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) cell (c) LED (d) switch
16. 16.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with M inside (c) a circle with a cross (d) a circle with an X in it
17. 17.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
18. 18.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
19. 19.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) triangle against a bar (c) triangle, bar and arrows (d) two or more cell symbols
20. 20.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a small empty box (c) a circle with M inside (d) a dot where wires meet
21. 21.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) junction (c) motor (d) wire
22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) LED (c) cell (d) bulb
23. 23.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a dot where wires meet (c) a plain rectangle (d) a long and a short line
24. 24.Which drawing is the symbol for a wire? (a) a straight line (b) a plain rectangle (c) two or more cell symbols (d) a dot where wires meet
25. 25.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) wire (b) battery (c) diode (d) LED
27. 27.True or false: triangle against a bar is the symbol for a motor. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) cell (b) junction (c) battery (d) switch
29. 29.True or false: one tall, one short bar is the symbol for a wire. (a) True (b) False
30. 30.True or false: a line lifted at a gap is the symbol for a diode. (a) True (b) False
31. 31.Which drawing is the symbol for a battery? (a) a circle with an X in it (b) one tall, one short bar (c) a small empty box (d) many long-short pairs
32. 32.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
33. 33.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
34. 34.True or false: a long and a short line is the symbol for a switch. (a) False (b) True
35. 35.True or false: a circle with V inside is the symbol for a capacitor. (a) True (b) False
36. 36.Which drawing is the symbol for a bulb? (a) a dot where wires meet (b) a circle with V inside (c) a plain rectangle (d) a circle with an X in it
37. 37.True or false: a line lifted at a gap is the symbol for a junction. (a) False (b) True
38. 38.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) switch (b) diode (c) resistor (d) cell
39. 39.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
40. 40.True or false: triangle, bar and arrows is the symbol for a junction. (a) False (b) True

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