Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 330 · 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 capacitor? (a) one tall, one short bar (b) two equal parallel lines (c) two or more cell symbols (d) a circle with M inside
2. 2.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
3. 3.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
4. 4.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) many long-short pairs (c) a plain rectangle (d) two equal parallel lines
5. 5.True or false: a straight line is the symbol for a wire. (a) False (b) True
6. 6.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
7. 7.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) battery (c) LED (d) resistor
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) junction (c) motor (d) switch
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) both lines (d) the longer line
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) little stars (c) dotted circles (d) wavy lines
12. 12.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
13. 13.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
14. 14.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a circle with a cross (c) two equal parallel lines (d) a circle with V inside
15. 15.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
16. 16.True or false: a circle with M inside is the symbol for a diode. (a) False (b) True
17. 17.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) battery (c) junction (d) cell
18. 18.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) battery (b) resistor (c) cell (d) switch
19. 19.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) ammeter (b) capacitor (c) bulb (d) resistor
21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) cell (c) wire (d) capacitor
22. 22.True or false: a line lifted at a gap is the symbol for a resistor. (a) False (b) True
23. 23.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False
24. 24.True or false: two or more cell symbols is the symbol for a junction. (a) True (b) False
25. 25.True or false: a plain rectangle is the symbol for a motor. (a) False (b) True
26. 26.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) resistor (c) junction (d) battery
27. 27.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
28. 28.Which drawing is the symbol for a cell? (a) many long-short pairs (b) a circle with a cross (c) one tall, one short bar (d) a plain rectangle
29. 29.Which drawing is the symbol for a junction? (a) triangle against a bar (b) a dot where wires meet (c) a circle with M inside (d) a circle with an X in it
30. 30.Which drawing is the symbol for a bulb? (a) triangle against a bar (b) a circle with a cross (c) a dot where wires meet (d) a circle with V inside
31. 31.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) a circle with V inside (c) triangle against a bar (d) a plain rectangle
32. 32.Which drawing is the symbol for a battery? (a) a small empty box (b) many long-short pairs (c) a plain rectangle (d) a dot where wires meet
33. 33.Which drawing is the symbol for a switch? (a) a circle with V inside (b) a line lifted at a gap (c) triangle against a bar (d) a circle with an X in it
34. 34.Which drawing is the symbol for an LED? (a) a circle with A inside (b) two equal parallel lines (c) triangle, bar and arrows (d) a circle with V inside
35. 35.Which drawing is the symbol for a wire? (a) two or more cell symbols (b) a line lifted at a gap (c) a circle with an X in it (d) a straight line
36. 36.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) battery (c) voltmeter (d) wire
37. 37.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) capacitor (c) wire (d) bulb
38. 38.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) wire (c) junction (d) resistor
40. 40.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) motor (c) capacitor (d) bulb

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