Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 105 · 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 small empty box is the symbol for a resistor. (a) True (b) False
2. 2.Which drawing is the symbol for a cell? (a) a circle with a cross (b) a long and a short line (c) two equal parallel lines (d) a circle with A inside
3. 3.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the shorter line (c) neither line (d) the longer line
4. 4.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a straight line (c) triangle, bar and arrows (d) one tall, one short bar
5. 5.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) ammeter (c) LED (d) cell
6. 6.Which drawing is the symbol for a voltmeter? (a) a plain rectangle (b) a circle with V inside (c) triangle against a bar (d) a circle with A inside
7. 7.True or false: a plain rectangle is the symbol for an LED. (a) False (b) True
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) capacitor (b) ammeter (c) bulb (d) junction
9. 9.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) one tall, one short bar (c) a small empty box (d) two or more cell symbols
10. 10.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) resistor (c) capacitor (d) voltmeter
11. 11.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) junction (c) wire (d) capacitor
12. 12.Which drawing is the symbol for a motor? (a) a small empty box (b) a circle with M inside (c) a circle with V inside (d) triangle, bar and arrows
13. 13.Which drawing is the symbol for a junction? (a) a plain rectangle (b) many long-short pairs (c) a dot where wires meet (d) a circle with a cross
14. 14.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) two or more cell symbols (c) a circle with M inside (d) a circle with a cross
15. 15.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
16. 16.Which drawing is the symbol for an LED? (a) a dot where wires meet (b) a circle with M inside (c) triangle, bar and arrows (d) two equal parallel lines
17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) battery (c) LED (d) capacitor
18. 18.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
19. 19.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
20. 20.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) LED (c) bulb (d) battery
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) diode (b) cell (c) ammeter (d) switch
23. 23.True or false: a circle with V inside is the symbol for a junction. (a) True (b) False
24. 24.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to hide the circuit (c) to make it colourful (d) quick and clear for all
25. 25.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) voltmeter (b) junction (c) cell (d) wire
26. 26.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) ammeter (b) motor (c) junction (d) diode
28. 28.Which drawing is the symbol for a wire? (a) a straight line (b) a long and a short line (c) two or more cell symbols (d) a line lifted at a gap
29. 29.Which drawing is the symbol for a capacitor? (a) triangle, bar and arrows (b) two equal parallel lines (c) a plain rectangle (d) a circle with V inside
30. 30.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with a cross (c) a plain rectangle (d) triangle, bar and arrows
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) diode (c) wire (d) voltmeter
32. 32.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
33. 33.Which drawing is the symbol for a battery? (a) a long and a short line (b) a dot where wires meet (c) two equal parallel lines (d) many long-short pairs
34. 34.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
35. 35.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) resistor (b) bulb (c) diode (d) cell
37. 37.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) voltmeter (c) diode (d) bulb
38. 38.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) LED (b) diode (c) junction (d) switch
39. 39.True or false: one tall, one short bar is the symbol for a diode. (a) False (b) True
40. 40.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with an X in it

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