Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 563 · 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 bulb? (a) two or more cell symbols (b) a circle with a cross (c) a small empty box (d) a circle with A inside
2. 2.✏️ 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
3. 3.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) LED (c) ammeter (d) battery
4. 4.Which drawing is the symbol for an ammeter? (a) a circle with a cross (b) a circle with M inside (c) a circle with an X in it (d) a circle with A inside
5. 5.True or false: a plain rectangle is the symbol for a motor. (a) True (b) False
6. 6.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
7. 7.Which drawing is the symbol for a bulb? (a) a straight line (b) a plain rectangle (c) a line lifted at a gap (d) a circle with an X in it
8. 8.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
9. 9.True or false: two or more cell symbols is the symbol for a wire. (a) True (b) False
10. 10.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
11. 11.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
12. 12.Which drawing is the symbol for a switch? (a) a small empty box (b) one tall, one short bar (c) a line lifted at a gap (d) a circle with a cross
13. 13.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) a circle with V inside (c) a small empty box (d) a circle with a cross
14. 14.Which drawing is the symbol for a wire? (a) a straight line (b) a long and a short line (c) a plain rectangle (d) a circle with a cross
15. 15.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
16. 16.Which drawing is the symbol for a battery? (a) a small empty box (b) two or more cell symbols (c) two equal parallel lines (d) a line lifted at a gap
17. 17.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) bulb (b) wire (c) capacitor (d) switch
18. 18.True or false: triangle against a bar is the symbol for a bulb. (a) True (b) False
19. 19.True or false: two equal parallel lines is the symbol for an LED. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) motor (c) battery (d) ammeter
21. 21.Which drawing is the symbol for a capacitor? (a) a straight line (b) a circle with M inside (c) a long and a short line (d) two equal parallel lines
22. 22.True or false: triangle against a bar is the symbol for a junction. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) ammeter (b) voltmeter (c) diode (d) bulb
24. 24.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) voltmeter (c) cell (d) battery
25. 25.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) triangle against a bar (c) triangle, bar and arrows (d) two equal parallel lines
26. 26.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) LED (c) battery (d) resistor
27. 27.Which drawing is the symbol for a junction? (a) one tall, one short bar (b) a long and a short line (c) a line lifted at a gap (d) a dot where wires meet
28. 28.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) motor (b) switch (c) ammeter (d) bulb
29. 29.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
30. 30.Which drawing is the symbol for an LED? (a) many long-short pairs (b) a plain rectangle (c) triangle, bar and arrows (d) one tall, one short bar
31. 31.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a straight line (c) a circle with an X in it (d) triangle against a bar
32. 32.True or false: a circle with a cross is the symbol for a cell. (a) False (b) True
33. 33.True or false: a circle with A inside is the symbol for an ammeter. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) switch (b) wire (c) junction (d) ammeter
35. 35.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) junction (c) ammeter (d) bulb
36. 36.True or false: two equal parallel lines is the symbol for a cell. (a) False (b) True
37. 37.True or false: a line lifted at a gap is the symbol for a battery. (a) False (b) True
38. 38.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
39. 39.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) voltmeter (c) motor (d) cell
40. 40.True or false: two or more cell symbols is the symbol for a capacitor. (a) True (b) False

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