Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 141 · 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 switch? (a) a line lifted at a gap (b) two or more cell symbols (c) a circle with an X in it (d) triangle against a bar
2. 2.✏️ 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
3. 3.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) switch (b) junction (c) wire (d) motor
4. 4.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) capacitor (b) battery (c) cell (d) switch
5. 5.Which drawing is the symbol for a battery? (a) many long-short pairs (b) a circle with an X in it (c) a circle with a cross (d) a small empty box
6. 6.True or false: a straight line is the symbol for a bulb. (a) True (b) False
7. 7.True or false: a circle with A inside is the symbol for a cell. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) motor (c) voltmeter (d) switch
9. 9.True or false: many long-short pairs is the symbol for a cell. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) bulb (b) voltmeter (c) resistor (d) ammeter
11. 11.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
12. 12.True or false: one tall, one short bar is the symbol for a voltmeter. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) junction (c) switch (d) cell
14. 14.Which drawing is the symbol for a motor? (a) a circle with an X in it (b) a small empty box (c) a circle with a cross (d) a circle with M inside
15. 15.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) many long-short pairs (c) a circle with A inside (d) two or more cell symbols
16. 16.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
17. 17.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) resistor (b) voltmeter (c) bulb (d) switch
19. 19.Which drawing is the symbol for a junction? (a) triangle against a bar (b) many long-short pairs (c) a small empty box (d) a dot where wires meet
20. 20.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
21. 21.Which drawing is the symbol for an LED? (a) a circle with a cross (b) a circle with an X in it (c) triangle, bar and arrows (d) a small empty box
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) capacitor (b) motor (c) voltmeter (d) LED
23. 23.Which drawing is the symbol for a battery? (a) a circle with A inside (b) two or more cell symbols (c) a dot where wires meet (d) a circle with M inside
24. 24.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) resistor (b) motor (c) bulb (d) battery
25. 25.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a circle with V inside (c) a dot where wires meet (d) triangle, bar and arrows
26. 26.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
27. 27.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with A inside (c) a circle with a cross (d) one tall, one short bar
28. 28.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) capacitor (c) resistor (d) cell
29. 29.Which drawing is the symbol for a cell? (a) triangle against a bar (b) two or more cell symbols (c) a long and a short line (d) a circle with V inside
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: many long-short pairs is the symbol for a battery. (a) False (b) True
32. 32.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
33. 33.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) wire (c) capacitor (d) voltmeter
35. 35.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
36. 36.True or false: a plain rectangle is the symbol for a voltmeter. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) battery (c) voltmeter (d) wire
38. 38.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) two or more cell symbols (c) a long and a short line (d) a circle with A inside
39. 39.Which drawing is the symbol for a capacitor? (a) two equal parallel lines (b) a circle with M inside (c) a long and a short line (d) a line lifted at a gap
40. 40.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) wire (b) battery (c) junction (d) resistor

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