Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 849 · 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, which part is drawn as many long-short pairs? (a) bulb (b) diode (c) switch (d) battery
2. 2.True or false: a long and a short line is the symbol for a diode. (a) True (b) False
3. 3.✏️ 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
4. 4.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a plain rectangle (c) one tall, one short bar (d) a circle with a cross
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) capacitor (c) junction (d) voltmeter
6. 6.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a straight line (c) two or more cell symbols (d) a long and a short line
7. 7.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) resistor (d) switch
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) dotted circles (c) little stars (d) wavy lines
9. 9.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) ammeter (c) wire (d) voltmeter
10. 10.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) capacitor (b) junction (c) switch (d) voltmeter
11. 11.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) capacitor (b) resistor (c) battery (d) voltmeter
12. 12.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) cell (b) motor (c) diode (d) junction
13. 13.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the shorter line (d) the longer line
14. 14.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) cell (b) voltmeter (c) bulb (d) switch
15. 15.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) switch (b) battery (c) capacitor (d) junction
16. 16.True or false: a circle with A inside is the symbol for a resistor. (a) True (b) False
17. 17.Which drawing is the symbol for a motor? (a) a line lifted at a gap (b) a circle with an X in it (c) a circle with M inside (d) one tall, one short bar
18. 18.Which drawing is the symbol for a switch? (a) a straight line (b) two or more cell symbols (c) a line lifted at a gap (d) a circle with an X in it
19. 19.Which drawing is the symbol for an ammeter? (a) a plain rectangle (b) a straight line (c) a circle with A inside (d) one tall, one short bar
20. 20.True or false: triangle against a bar is the symbol for a switch. (a) True (b) False
21. 21.True or false: a straight line is the symbol for a diode. (a) True (b) False
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) motor (b) switch (c) bulb (d) diode
23. 23.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a circle with M inside (c) one tall, one short bar (d) two equal parallel lines
24. 24.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) resistor (c) ammeter (d) battery
25. 25.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
26. 26.✏️ In a circuit diagram, which part is drawn as a straight line? (a) battery (b) LED (c) wire (d) capacitor
27. 27.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) triangle against a bar (c) a small empty box (d) one tall, one short bar
28. 28.True or false: a circle with an X in it is the symbol for a cell. (a) True (b) False
29. 29.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
30. 30.Which drawing is the symbol for a capacitor? (a) two or more cell symbols (b) two equal parallel lines (c) a circle with A inside (d) a circle with M inside
31. 31.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) a long and a short line (c) triangle against a bar (d) two or more cell symbols
32. 32.True or false: triangle against a bar is the symbol for a diode. (a) False (b) True
33. 33.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) a circle with M inside (c) a line lifted at a gap (d) a dot where wires meet
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) LED (c) voltmeter (d) cell
35. 35.Which drawing is the symbol for a wire? (a) a long and a short line (b) a straight line (c) a circle with M inside (d) many long-short pairs
36. 36.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
37. 37.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with a cross (c) two equal parallel lines (d) a small empty box
38. 38.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
39. 39.True or false: a circle with V inside is the symbol for an LED. (a) True (b) False
40. 40.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False

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