Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 323 · 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) to make it colourful (b) to hide the circuit (c) symbols are heavier (d) quick and clear for all
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) dotted circles (d) little stars
3. 3.True or false: a straight line is the symbol for a wire. (a) False (b) True
4. 4.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) cell (c) capacitor (d) switch
5. 5.Which drawing is the symbol for a diode? (a) a circle with an X in it (b) two or more cell symbols (c) triangle against a bar (d) a circle with V inside
6. 6.Which drawing is the symbol for a voltmeter? (a) one tall, one short bar (b) a circle with a cross (c) a line lifted at a gap (d) a circle with V inside
7. 7.True or false: two or more cell symbols is the symbol for a resistor. (a) False (b) True
8. 8.True or false: triangle against a bar is the symbol for an LED. (a) True (b) False
9. 9.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) switch (b) capacitor (c) cell (d) battery
11. 11.True or false: a circle with A inside is the symbol for an LED. (a) True (b) False
12. 12.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) capacitor (b) diode (c) cell (d) wire
13. 13.True or false: a line lifted at a gap is the symbol for a capacitor. (a) True (b) False
14. 14.True or false: a dot where wires meet is the symbol for a cell. (a) False (b) True
15. 15.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) battery (b) bulb (c) wire (d) voltmeter
17. 17.Which drawing is the symbol for an ammeter? (a) a dot where wires meet (b) a circle with A inside (c) a small empty box (d) a line lifted at a gap
18. 18.True or false: a line lifted at a gap is the symbol for a bulb. (a) True (b) False
19. 19.True or false: a circle with a cross is the symbol for a bulb. (a) True (b) False
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) capacitor (c) battery (d) motor
21. 21.Which drawing is the symbol for a motor? (a) many long-short pairs (b) a circle with a cross (c) a circle with an X in it (d) a circle with M inside
22. 22.✏️ In a circuit diagram, which part is drawn as a straight line? (a) cell (b) motor (c) switch (d) wire
23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) LED (c) ammeter (d) battery
24. 24.Which drawing is the symbol for a cell? (a) one tall, one short bar (b) triangle against a bar (c) a circle with A inside (d) a straight line
25. 25.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
26. 26.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) capacitor (b) ammeter (c) bulb (d) battery
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) LED (c) capacitor (d) junction
29. 29.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) neither line (c) the longer line (d) the shorter line
30. 30.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
31. 31.Which drawing is the symbol for a bulb? (a) two or more cell symbols (b) a circle with an X in it (c) a straight line (d) two equal parallel lines
32. 32.Which drawing is the symbol for a battery? (a) a straight line (b) a circle with a cross (c) two or more cell symbols (d) one tall, one short bar
33. 33.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) junction (c) diode (d) wire
34. 34.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a long and a short line (d) a plain rectangle
35. 35.True or false: a straight line is the symbol for a bulb. (a) False (b) True
36. 36.Which drawing is the symbol for an LED? (a) a line lifted at a gap (b) triangle, bar and arrows (c) a circle with A inside (d) two or more cell symbols
37. 37.Which drawing is the symbol for a bulb? (a) a long and a short line (b) triangle against a bar (c) a straight line (d) a circle with a cross
38. 38.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) wire (b) cell (c) voltmeter (d) bulb
39. 39.True or false: a dot where wires meet is the symbol for a capacitor. (a) False (b) True
40. 40.True or false: a line lifted at a gap is the symbol for a cell. (a) True (b) False

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