Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 867 · 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.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) quick and clear for all (c) to make it colourful (d) to hide the circuit
2. 2.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) LED (c) bulb (d) resistor
3. 3.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) diode (c) ammeter (d) resistor
4. 4.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) diode (c) battery (d) switch
5. 5.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) ammeter (b) LED (c) bulb (d) resistor
6. 6.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) cell (b) battery (c) ammeter (d) bulb
7. 7.Which drawing is the symbol for an LED? (a) a circle with an X in it (b) a circle with a cross (c) triangle, bar and arrows (d) triangle against a bar
8. 8.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
9. 9.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
10. 10.Which drawing is the symbol for a motor? (a) a straight line (b) many long-short pairs (c) a circle with M inside (d) a circle with a cross
11. 11.True or false: many long-short pairs is the symbol for a junction. (a) False (b) True
12. 12.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
13. 13.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) cell (c) switch (d) motor
14. 14.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) junction (b) bulb (c) diode (d) cell
15. 15.Which drawing is the symbol for a bulb? (a) a long and a short line (b) a circle with a cross (c) triangle against a bar (d) a small empty box
16. 16.✏️ In a circuit diagram, which part is drawn as a straight line? (a) bulb (b) diode (c) junction (d) wire
17. 17.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) LED (c) motor (d) bulb
18. 18.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) neither line (c) the shorter line (d) both lines
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) LED (b) bulb (c) resistor (d) ammeter
20. 20.True or false: a circle with an X in it is the symbol for a bulb. (a) True (b) False
21. 21.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) switch (d) voltmeter
22. 22.True or false: two or more cell symbols is the symbol for a battery. (a) True (b) False
23. 23.Which drawing is the symbol for a capacitor? (a) triangle against a bar (b) many long-short pairs (c) two equal parallel lines (d) a circle with a cross
24. 24.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) resistor (b) capacitor (c) motor (d) LED
25. 25.True or false: a line lifted at a gap is the symbol for a voltmeter. (a) False (b) True
26. 26.Which drawing is the symbol for a diode? (a) one tall, one short bar (b) two equal parallel lines (c) triangle against a bar (d) a circle with a cross
27. 27.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) voltmeter (b) LED (c) resistor (d) junction
28. 28.True or false: many long-short pairs is the symbol for a wire. (a) True (b) False
29. 29.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
30. 30.Which drawing is the symbol for a bulb? (a) a long and a short line (b) two or more cell symbols (c) a circle with V inside (d) a circle with an X in it
31. 31.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
32. 32.True or false: a straight line is the symbol for a voltmeter. (a) False (b) True
33. 33.True or false: two equal parallel lines is the symbol for a bulb. (a) True (b) False
34. 34.True or false: a straight line is the symbol for a junction. (a) False (b) True
35. 35.True or false: triangle, bar and arrows is the symbol for a cell. (a) True (b) False
36. 36.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
37. 37.Which drawing is the symbol for a wire? (a) a straight line (b) a small empty box (c) a plain rectangle (d) a circle with A inside
38. 38.Which drawing is the symbol for a cell? (a) a circle with A inside (b) a long and a short line (c) a circle with V inside (d) a circle with an X in it
39. 39.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) a circle with a cross (c) a circle with A inside (d) triangle against a bar
40. 40.Which drawing is the symbol for a resistor? (a) a circle with a cross (b) many long-short pairs (c) a dot where wires meet (d) a plain rectangle

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