Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 553 · 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.True or false: one tall, one short bar is the symbol for a battery. (a) True (b) False
3. 3.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) motor (b) capacitor (c) diode (d) junction
4. 4.True or false: a circle with a cross is the symbol for a motor. (a) False (b) True
5. 5.True or false: a straight line is the symbol for a wire. (a) False (b) True
6. 6.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a long and a short line (c) a circle with an X in it (d) a circle with M inside
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) both lines (c) the longer line (d) the shorter line
8. 8.Which drawing is the symbol for a switch? (a) a dot where wires meet (b) a line lifted at a gap (c) a long and a short line (d) a straight line
9. 9.True or false: many long-short pairs is the symbol for a capacitor. (a) True (b) False
10. 10.True or false: a small empty box is the symbol for an ammeter. (a) True (b) False
11. 11.Which drawing is the symbol for a cell? (a) a small empty box (b) a circle with a cross (c) a long and a short line (d) triangle against a bar
12. 12.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) capacitor (c) switch (d) LED
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) junction (b) resistor (c) bulb (d) wire
14. 14.Which drawing is the symbol for a bulb? (a) a long and a short line (b) triangle against a bar (c) a circle with an X in it (d) a circle with V inside
15. 15.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) little stars (c) straight lines (d) dotted circles
16. 16.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) diode (b) battery (c) switch (d) junction
17. 17.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
18. 18.✏️ In a circuit diagram, which part is drawn as a straight line? (a) LED (b) switch (c) wire (d) battery
19. 19.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) battery (c) motor (d) resistor
21. 21.Which drawing is the symbol for a battery? (a) a small empty box (b) two or more cell symbols (c) a plain rectangle (d) a dot where wires meet
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) motor (b) battery (c) ammeter (d) switch
23. 23.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) switch (c) cell (d) battery
24. 24.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) LED (c) motor (d) voltmeter
25. 25.Which drawing is the symbol for an ammeter? (a) a circle with V inside (b) a circle with A inside (c) a circle with a cross (d) two or more cell symbols
26. 26.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) junction (b) capacitor (c) wire (d) ammeter
27. 27.Which drawing is the symbol for a cell? (a) triangle, bar and arrows (b) a circle with V inside (c) a line lifted at a gap (d) one tall, one short bar
28. 28.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) voltmeter (c) cell (d) diode
29. 29.True or false: a long and a short line is the symbol for an ammeter. (a) True (b) False
30. 30.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) cell (b) bulb (c) wire (d) battery
31. 31.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) battery (b) resistor (c) switch (d) bulb
32. 32.Which drawing is the symbol for a voltmeter? (a) triangle against a bar (b) many long-short pairs (c) a circle with V inside (d) two or more cell symbols
33. 33.Which drawing is the symbol for an LED? (a) triangle against a bar (b) a circle with M inside (c) triangle, bar and arrows (d) two or more cell symbols
34. 34.True or false: a small empty box is the symbol for a voltmeter. (a) True (b) False
35. 35.Which drawing is the symbol for a resistor? (a) a plain rectangle (b) triangle, bar and arrows (c) two or more cell symbols (d) a line lifted at a gap
36. 36.True or false: two equal parallel lines is the symbol for a voltmeter. (a) True (b) False
37. 37.True or false: triangle, bar and arrows is the symbol for an ammeter. (a) False (b) True
38. 38.True or false: a small empty box is the symbol for a bulb. (a) False (b) True
39. 39.True or false: triangle, bar and arrows is the symbol for a wire. (a) True (b) False
40. 40.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True

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