Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 956 · 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.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
2. 2.✏️ In a circuit diagram, which part is drawn as a straight line? (a) wire (b) resistor (c) voltmeter (d) bulb
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
4. 4.True or false: a dot where wires meet is the symbol for a battery. (a) False (b) True
5. 5.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
6. 6.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
7. 7.True or false: a circle with M inside is the symbol for a switch. (a) False (b) True
8. 8.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
9. 9.Which drawing is the symbol for an LED? (a) a small empty box (b) a circle with an X in it (c) triangle against a bar (d) triangle, bar and arrows
10. 10.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) two equal parallel lines (c) a circle with V inside (d) a circle with a cross
11. 11.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) junction (c) cell (d) ammeter
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) LED (c) voltmeter (d) bulb
13. 13.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) two equal parallel lines (c) a circle with A inside (d) one tall, one short bar
14. 14.True or false: a small empty box is the symbol for an LED. (a) True (b) False
15. 15.True or false: a circle with A inside is the symbol for a junction. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) battery (b) capacitor (c) wire (d) cell
17. 17.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) cell (b) resistor (c) voltmeter (d) battery
18. 18.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) junction (b) switch (c) battery (d) cell
19. 19.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) both lines (c) neither line (d) the shorter line
20. 20.Which drawing is the symbol for a junction? (a) a circle with A inside (b) a straight line (c) a small empty box (d) a dot where wires meet
21. 21.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) junction (c) diode (d) switch
22. 22.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) motor (b) LED (c) battery (d) junction
23. 23.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) wire (b) bulb (c) cell (d) diode
24. 24.True or false: one tall, one short bar is the symbol for a switch. (a) True (b) False
25. 25.True or false: a circle with an X in it is the symbol for a voltmeter. (a) True (b) False
26. 26.True or false: a long and a short line is the symbol for an LED. (a) True (b) False
27. 27.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
28. 28.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
29. 29.Which drawing is the symbol for a wire? (a) many long-short pairs (b) a straight line (c) two equal parallel lines (d) a circle with V inside
30. 30.Which drawing is the symbol for a resistor? (a) two or more cell symbols (b) a plain rectangle (c) a line lifted at a gap (d) a straight line
31. 31.True or false: a straight line is the symbol for a cell. (a) True (b) False
32. 32.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) resistor (c) voltmeter (d) switch
33. 33.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
34. 34.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
35. 35.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) bulb (c) voltmeter (d) diode
36. 36.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a line lifted at a gap (c) a long and a short line (d) a plain rectangle
37. 37.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
38. 38.Which drawing is the symbol for a battery? (a) a line lifted at a gap (b) two or more cell symbols (c) a long and a short line (d) a small empty box
39. 39.True or false: two or more cell symbols is the symbol for a motor. (a) True (b) False
40. 40.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a circle with a cross (c) triangle, bar and arrows (d) a circle with M inside

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