Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 191 · 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, wires are usually drawn as … (a) dotted circles (b) little stars (c) wavy lines (d) straight lines
2. 2.Which drawing is the symbol for a resistor? (a) many long-short pairs (b) a dot where wires meet (c) a circle with M inside (d) a plain rectangle
3. 3.Which drawing is the symbol for a wire? (a) a long and a short line (b) a straight line (c) a circle with a cross (d) a circle with M inside
4. 4.Which drawing is the symbol for a motor? (a) a circle with M inside (b) two equal parallel lines (c) a straight line (d) two or more cell symbols
5. 5.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) capacitor (c) wire (d) cell
6. 6.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) symbols are heavier (c) to hide the circuit (d) quick and clear for all
7. 7.Which drawing is the symbol for a voltmeter? (a) a dot where wires meet (b) a circle with a cross (c) triangle, bar and arrows (d) a circle with V inside
8. 8.True or false: a circle with an X in it is the symbol for a diode. (a) True (b) False
9. 9.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) bulb (c) LED (d) battery
10. 10.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) two equal parallel lines (c) a small empty box (d) a line lifted at a gap
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) voltmeter (c) ammeter (d) diode
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
13. 13.True or false: many long-short pairs is the symbol for a wire. (a) False (b) True
14. 14.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) wire (c) resistor (d) motor
15. 15.True or false: many long-short pairs is the symbol for a diode. (a) False (b) True
16. 16.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a long and a short line (c) a circle with a cross (d) a line lifted at a gap
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) battery (b) switch (c) ammeter (d) resistor
18. 18.True or false: one tall, one short bar is the symbol for an ammeter. (a) False (b) True
19. 19.True or false: two or more cell symbols is the symbol for a bulb. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) battery (c) junction (d) diode
21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) switch (b) bulb (c) capacitor (d) cell
22. 22.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) cell (c) junction (d) capacitor
24. 24.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
25. 25.True or false: a circle with A inside is the symbol for a motor. (a) False (b) True
26. 26.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
27. 27.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a circle with V inside (c) a small empty box (d) a long and a short line
28. 28.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
29. 29.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) two equal parallel lines (c) triangle against a bar (d) a circle with M inside
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) resistor (c) bulb (d) wire
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) cell (c) diode (d) switch
32. 32.True or false: a long and a short line is the symbol for a wire. (a) True (b) False
33. 33.True or false: a circle with V inside is the symbol for a diode. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) bulb (c) wire (d) voltmeter
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) capacitor (b) battery (c) resistor (d) voltmeter
36. 36.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) diode (c) voltmeter (d) resistor
38. 38.True or false: a small empty box is the symbol for a diode. (a) False (b) True
39. 39.True or false: triangle against a bar is the symbol for a cell. (a) False (b) True
40. 40.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a dot where wires meet (c) many long-short pairs (d) one tall, one short bar

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