Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 613 · 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) two or more cell symbols (b) a line lifted at a gap (c) a plain rectangle (d) a circle with V inside
2. 2.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
3. 3.True or false: a long and a short line is the symbol for a cell. (a) False (b) True
4. 4.Which drawing is the symbol for a cell? (a) a line lifted at a gap (b) a circle with V inside (c) a small empty box (d) one tall, one short bar
5. 5.Which drawing is the symbol for an ammeter? (a) a line lifted at a gap (b) triangle against a bar (c) a circle with A inside (d) two or more cell symbols
6. 6.True or false: a plain rectangle is the symbol for a wire. (a) True (b) False
7. 7.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the longer line (c) the shorter line (d) both lines
8. 8.True or false: many long-short pairs is the symbol for an LED. (a) False (b) True
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) motor (b) voltmeter (c) battery (d) junction
11. 11.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) wire (c) cell (d) bulb
12. 12.Which drawing is the symbol for a motor? (a) a straight line (b) a circle with M inside (c) a circle with a cross (d) a plain rectangle
13. 13.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) switch (b) bulb (c) junction (d) LED
14. 14.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) symbols are heavier (c) to make it colourful (d) quick and clear for all
15. 15.True or false: triangle, bar and arrows is the symbol for an LED. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) cell (b) bulb (c) LED (d) motor
17. 17.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) motor (b) cell (c) voltmeter (d) battery
18. 18.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) diode (b) junction (c) wire (d) bulb
19. 19.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) battery (b) junction (c) cell (d) wire
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) diode (b) bulb (c) resistor (d) junction
21. 21.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
22. 22.Which drawing is the symbol for a diode? (a) two equal parallel lines (b) a plain rectangle (c) triangle against a bar (d) a dot where wires meet
23. 23.Which drawing is the symbol for a cell? (a) a plain rectangle (b) a dot where wires meet (c) a long and a short line (d) a line lifted at a gap
24. 24.True or false: a circle with an X in it is the symbol for a bulb. (a) False (b) True
25. 25.True or false: a dot where wires meet is the symbol for an LED. (a) True (b) False
26. 26.True or false: a small empty box is the symbol for a motor. (a) False (b) True
27. 27.True or false: a circle with M inside is the symbol for a motor. (a) True (b) False
28. 28.Which drawing is the symbol for a capacitor? (a) a long and a short line (b) one tall, one short bar (c) a circle with V inside (d) two equal parallel lines
29. 29.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) triangle, bar and arrows (c) a small empty box (d) a circle with V inside
30. 30.True or false: two equal parallel lines is the symbol for an LED. (a) True (b) False
31. 31.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) voltmeter (b) wire (c) bulb (d) diode
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) voltmeter (b) switch (c) bulb (d) ammeter
33. 33.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) switch (c) capacitor (d) cell
34. 34.Which drawing is the symbol for a voltmeter? (a) two or more cell symbols (b) triangle against a bar (c) a circle with V inside (d) a dot where wires meet
35. 35.Which drawing is the symbol for a junction? (a) a straight line (b) a small empty box (c) a dot where wires meet (d) a circle with V inside
36. 36.True or false: many long-short pairs is the symbol for a battery. (a) False (b) True
37. 37.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) capacitor (c) motor (d) resistor
38. 38.True or false: a line lifted at a gap is the symbol for a battery. (a) True (b) False
39. 39.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) battery (b) LED (c) bulb (d) resistor
40. 40.True or false: a circle with a cross is the symbol for a motor. (a) True (b) False

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