Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 530 · 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 cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) both lines (d) the shorter line
2. 2.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
4. 4.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) wire (c) resistor (d) capacitor
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) voltmeter (c) battery (d) LED
6. 6.True or false: a circle with an X in it is the symbol for an ammeter. (a) True (b) False
7. 7.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with an X in it (c) two equal parallel lines (d) a circle with A inside
8. 8.✏️ 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
9. 9.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
10. 10.Which drawing is the symbol for an ammeter? (a) many long-short pairs (b) a circle with A inside (c) a circle with a cross (d) a long and a short line
11. 11.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) capacitor (c) wire (d) diode
12. 12.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) diode (b) battery (c) ammeter (d) junction
14. 14.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) capacitor (b) battery (c) switch (d) wire
16. 16.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) resistor (c) cell (d) junction
18. 18.Which drawing is the symbol for a diode? (a) a small empty box (b) a circle with M inside (c) a straight line (d) triangle against a bar
19. 19.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
20. 20.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
21. 21.Which drawing is the symbol for a battery? (a) triangle against a bar (b) two or more cell symbols (c) a circle with A inside (d) a small empty box
22. 22.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
23. 23.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a circle with M inside (c) a small empty box (d) one tall, one short bar
24. 24.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
25. 25.True or false: two equal parallel lines is the symbol for a diode. (a) True (b) False
26. 26.True or false: many long-short pairs is the symbol for a switch. (a) True (b) False
27. 27.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) LED (c) motor (d) voltmeter
29. 29.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) battery (c) LED (d) switch
30. 30.True or false: two equal parallel lines is the symbol for a motor. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) cell (c) resistor (d) battery
32. 32.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) battery (c) LED (d) switch
33. 33.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a straight line (c) one tall, one short bar (d) triangle against a bar
34. 34.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) one tall, one short bar (c) two or more cell symbols (d) triangle, bar and arrows
35. 35.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) capacitor (d) diode
36. 36.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
37. 37.True or false: a dot where wires meet is the symbol for a diode. (a) False (b) True
38. 38.Which drawing is the symbol for a capacitor? (a) a dot where wires meet (b) a long and a short line (c) two equal parallel lines (d) two or more cell symbols
39. 39.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) a straight line (c) a circle with M inside (d) a line lifted at a gap
40. 40.Which drawing is the symbol for a wire? (a) a straight line (b) a circle with V inside (c) a line lifted at a gap (d) many long-short pairs

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