Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 96 · 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) wavy lines (b) straight lines (c) dotted circles (d) little stars
2. 2.True or false: two equal parallel lines is the symbol for a switch. (a) False (b) True
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
4. 4.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) switch (c) battery (d) capacitor
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
6. 6.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a long and a short line (c) a straight line (d) two or more cell symbols
7. 7.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) junction (b) switch (c) wire (d) resistor
8. 8.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) ammeter (c) junction (d) cell
9. 9.Which drawing is the symbol for a bulb? (a) a line lifted at a gap (b) a circle with an X in it (c) a dot where wires meet (d) a circle with A inside
10. 10.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) junction (b) LED (c) cell (d) motor
12. 12.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
13. 13.✏️ In a circuit diagram, which part is drawn as a straight line? (a) voltmeter (b) wire (c) resistor (d) switch
14. 14.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
15. 15.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
16. 16.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) wire (c) diode (d) LED
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) resistor (b) LED (c) voltmeter (d) bulb
18. 18.True or false: a long and a short line is the symbol for a voltmeter. (a) False (b) True
19. 19.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
20. 20.True or false: many long-short pairs is the symbol for a wire. (a) False (b) True
21. 21.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) diode (b) battery (c) cell (d) voltmeter
22. 22.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) ammeter (b) bulb (c) junction (d) switch
23. 23.True or false: triangle, bar and arrows is the symbol for a resistor. (a) False (b) True
24. 24.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a circle with V inside (c) a circle with an X in it (d) a plain rectangle
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) cell (b) LED (c) bulb (d) junction
26. 26.True or false: a straight line is the symbol for a wire. (a) True (b) False
27. 27.Which drawing is the symbol for a motor? (a) a circle with M inside (b) many long-short pairs (c) two or more cell symbols (d) triangle, bar and arrows
28. 28.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
29. 29.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) LED (c) cell (d) ammeter
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) battery (c) voltmeter (d) bulb
31. 31.Which drawing is the symbol for an LED? (a) two equal parallel lines (b) triangle, bar and arrows (c) a circle with an X in it (d) one tall, one short bar
32. 32.True or false: one tall, one short bar is the symbol for an LED. (a) False (b) True
33. 33.Which drawing is the symbol for a bulb? (a) a circle with a cross (b) a small empty box (c) two or more cell symbols (d) a circle with V inside
34. 34.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
35. 35.True or false: a circle with A inside is the symbol for a bulb. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) diode (b) ammeter (c) resistor (d) LED
37. 37.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) cell (c) battery (d) diode
38. 38.Which drawing is the symbol for a capacitor? (a) a circle with a cross (b) one tall, one short bar (c) a line lifted at a gap (d) two equal parallel lines
39. 39.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) wire (c) motor (d) cell
40. 40.Which drawing is the symbol for an ammeter? (a) triangle, bar and arrows (b) a circle with A inside (c) a circle with a cross (d) a straight line

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