Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 79 · 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 cell? (a) a long and a short line (b) a small empty box (c) a circle with M inside (d) two equal parallel lines
2. 2.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) capacitor (b) bulb (c) motor (d) voltmeter
3. 3.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) voltmeter (b) battery (c) capacitor (d) junction
4. 4.True or false: a straight line is the symbol for a wire. (a) False (b) True
5. 5.True or false: a circle with a cross is the symbol for a battery. (a) True (b) False
6. 6.Which drawing is the symbol for a wire? (a) a circle with a cross (b) a circle with V inside (c) a straight line (d) a small empty box
7. 7.Which drawing is the symbol for an ammeter? (a) one tall, one short bar (b) a circle with A inside (c) a straight line (d) triangle, bar and arrows
8. 8.✏️ In a circuit diagram, which part is drawn as a straight line? (a) resistor (b) ammeter (c) voltmeter (d) wire
9. 9.Which drawing is the symbol for an LED? (a) many long-short pairs (b) triangle, bar and arrows (c) one tall, one short bar (d) a dot where wires meet
10. 10.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
11. 11.Which drawing is the symbol for a bulb? (a) a circle with A inside (b) a circle with a cross (c) a long and a short line (d) many long-short pairs
12. 12.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
13. 13.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) quick and clear for all (d) to make it colourful
14. 14.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) battery (c) resistor (d) capacitor
15. 15.True or false: a straight line is the symbol for a battery. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) battery (b) capacitor (c) junction (d) bulb
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) battery (c) bulb (d) motor
18. 18.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) diode (b) battery (c) switch (d) LED
19. 19.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
20. 20.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
21. 21.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) resistor (b) voltmeter (c) junction (d) cell
23. 23.Which drawing is the symbol for a voltmeter? (a) a small empty box (b) triangle against a bar (c) a circle with M inside (d) a circle with V inside
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) battery (b) LED (c) diode (d) bulb
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) ammeter (b) junction (c) switch (d) diode
26. 26.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
27. 27.Which drawing is the symbol for a junction? (a) a dot where wires meet (b) a long and a short line (c) many long-short pairs (d) triangle, bar and arrows
28. 28.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
29. 29.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a circle with M inside (c) a plain rectangle (d) a circle with a cross
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) diode (b) junction (c) battery (d) voltmeter
31. 31.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) False (b) True
32. 32.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
33. 33.True or false: a circle with an X in it is the symbol for a switch. (a) True (b) False
34. 34.Which drawing is the symbol for a motor? (a) a straight line (b) two equal parallel lines (c) a circle with M inside (d) a long and a short line
35. 35.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) cell (b) junction (c) battery (d) resistor
36. 36.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
37. 37.Which drawing is the symbol for a cell? (a) triangle against a bar (b) many long-short pairs (c) a small empty box (d) one tall, one short bar
38. 38.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a long and a short line (c) a line lifted at a gap (d) a circle with an X in it
39. 39.Which drawing is the symbol for a resistor? (a) a circle with M inside (b) a small empty box (c) a circle with A inside (d) triangle against a bar
40. 40.True or false: a long and a short line is the symbol for a voltmeter. (a) True (b) False

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