Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 313 · 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 switch? (a) a line lifted at a gap (b) a small empty box (c) a straight line (d) a dot where wires meet
2. 2.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) a circle with A inside (c) a circle with V inside (d) triangle, bar and arrows
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) straight lines (c) dotted circles (d) wavy lines
4. 4.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a circle with A inside (c) a dot where wires meet (d) a circle with a cross
5. 5.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) the longer line (c) both lines (d) neither line
6. 6.Which drawing is the symbol for a wire? (a) triangle against a bar (b) a straight line (c) one tall, one short bar (d) a circle with a cross
7. 7.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
8. 8.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) resistor (b) cell (c) ammeter (d) motor
9. 9.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) to make it colourful (c) quick and clear for all (d) symbols are heavier
10. 10.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) diode (b) resistor (c) capacitor (d) battery
11. 11.Which drawing is the symbol for an LED? (a) triangle, bar and arrows (b) triangle against a bar (c) a circle with V inside (d) two or more cell symbols
12. 12.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
13. 13.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
14. 14.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) wire (b) LED (c) voltmeter (d) bulb
16. 16.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) switch (b) junction (c) diode (d) motor
17. 17.Which drawing is the symbol for a cell? (a) a circle with an X in it (b) a circle with a cross (c) a long and a short line (d) a circle with A inside
18. 18.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) diode (c) motor (d) wire
19. 19.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) cell (c) ammeter (d) diode
20. 20.True or false: a circle with V inside is the symbol for a bulb. (a) True (b) False
21. 21.Which drawing is the symbol for a cell? (a) a straight line (b) a line lifted at a gap (c) one tall, one short bar (d) two or more cell symbols
22. 22.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) motor (b) junction (c) switch (d) battery
23. 23.Which drawing is the symbol for a junction? (a) many long-short pairs (b) a circle with an X in it (c) a dot where wires meet (d) a small empty box
24. 24.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) bulb (b) diode (c) junction (d) battery
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) LED (b) cell (c) voltmeter (d) ammeter
26. 26.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) switch (c) LED (d) voltmeter
27. 27.True or false: a circle with A inside is the symbol for a junction. (a) True (b) False
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) switch (b) cell (c) battery (d) bulb
29. 29.✏️ In a circuit diagram, which part is drawn as a straight line? (a) junction (b) battery (c) motor (d) wire
30. 30.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
31. 31.Which drawing is the symbol for a bulb? (a) a circle with M inside (b) a circle with a cross (c) a line lifted at a gap (d) a plain rectangle
32. 32.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
33. 33.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) resistor (c) diode (d) wire
34. 34.True or false: triangle, bar and arrows is the symbol for a capacitor. (a) True (b) False
35. 35.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
36. 36.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a straight line (c) triangle, bar and arrows (d) a plain rectangle
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) LED (c) wire (d) motor
38. 38.True or false: a circle with a cross is the symbol for a diode. (a) True (b) False
39. 39.True or false: a long and a short line is the symbol for an LED. (a) False (b) True
40. 40.True or false: a long and a short line is the symbol for a cell. (a) True (b) False

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