Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 649 · 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 a circle with A inside? (a) LED (b) switch (c) motor (d) ammeter
2. 2.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) battery (c) resistor (d) bulb
3. 3.Which drawing is the symbol for an LED? (a) a long and a short line (b) triangle, bar and arrows (c) a circle with an X in it (d) triangle against a bar
4. 4.Which drawing is the symbol for an ammeter? (a) two or more cell symbols (b) a circle with an X in it (c) a line lifted at a gap (d) a circle with A inside
5. 5.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with an X in it (c) a straight line (d) two or more cell symbols
6. 6.Which drawing is the symbol for a bulb? (a) one tall, one short bar (b) two equal parallel lines (c) a circle with a cross (d) a small empty box
7. 7.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a long and a short line (c) two equal parallel lines (d) a circle with a cross
8. 8.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) to make it colourful (c) to hide the circuit (d) symbols are heavier
9. 9.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) diode (c) wire (d) cell
10. 10.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
11. 11.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) voltmeter (c) wire (d) bulb
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) wire (c) LED (d) bulb
13. 13.True or false: a circle with V inside is the symbol for a battery. (a) True (b) False
14. 14.True or false: many long-short pairs is the symbol for a resistor. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) ammeter (c) junction (d) switch
16. 16.True or false: a line lifted at a gap is the symbol for an LED. (a) True (b) False
17. 17.True or false: triangle against a bar is the symbol for a battery. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) bulb (c) motor (d) LED
19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) bulb (c) switch (d) wire
20. 20.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
21. 21.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) switch (b) motor (c) bulb (d) wire
23. 23.True or false: a line lifted at a gap is the symbol for a switch. (a) True (b) False
24. 24.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) LED (c) wire (d) battery
25. 25.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
26. 26.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
27. 27.Which drawing is the symbol for a resistor? (a) a straight line (b) two or more cell symbols (c) a small empty box (d) a circle with an X in it
28. 28.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
29. 29.Which drawing is the symbol for a capacitor? (a) a circle with an X in it (b) triangle, bar and arrows (c) two equal parallel lines (d) two or more cell symbols
30. 30.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) cell (b) wire (c) motor (d) switch
31. 31.Which drawing is the symbol for a switch? (a) a circle with A inside (b) a straight line (c) a line lifted at a gap (d) a circle with a cross
32. 32.True or false: a circle with a cross is the symbol for a voltmeter. (a) False (b) True
33. 33.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
34. 34.Which drawing is the symbol for a wire? (a) a circle with A inside (b) a circle with a cross (c) one tall, one short bar (d) a straight line
35. 35.Which drawing is the symbol for a junction? (a) a circle with an X in it (b) one tall, one short bar (c) a dot where wires meet (d) a circle with a cross
36. 36.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) LED (b) switch (c) voltmeter (d) diode
37. 37.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) dotted circles (c) straight lines (d) little stars
38. 38.True or false: a line lifted at a gap is the symbol for a motor. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) cell (b) resistor (c) motor (d) LED
40. 40.Which drawing is the symbol for a battery? (a) triangle against a bar (b) a line lifted at a gap (c) many long-short pairs (d) a small empty box

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