Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 284 · 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 an ammeter? (a) a circle with an X in it (b) a straight line (c) a long and a short line (d) a circle with A inside
2. 2.True or false: a plain rectangle is the symbol for a resistor. (a) True (b) False
3. 3.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
4. 4.True or false: two equal parallel lines is the symbol for a capacitor. (a) False (b) True
5. 5.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
6. 6.Which drawing is the symbol for a motor? (a) a circle with M inside (b) a line lifted at a gap (c) two or more cell symbols (d) two equal parallel lines
7. 7.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) capacitor (b) cell (c) LED (d) wire
8. 8.Which drawing is the symbol for a switch? (a) a line lifted at a gap (b) a circle with a cross (c) a long and a short line (d) a circle with A inside
9. 9.Which drawing is the symbol for a resistor? (a) two equal parallel lines (b) a line lifted at a gap (c) a dot where wires meet (d) a plain rectangle
10. 10.✏️ Why do engineers draw circuits with symbols? (a) symbols are heavier (b) to make it colourful (c) to hide the circuit (d) quick and clear for all
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) the shorter line (b) both lines (c) the longer line (d) neither line
12. 12.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) resistor (c) cell (d) diode
13. 13.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) LED (b) voltmeter (c) resistor (d) wire
14. 14.True or false: many long-short pairs is the symbol for a junction. (a) True (b) False
15. 15.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) voltmeter (c) battery (d) diode
16. 16.Which drawing is the symbol for a junction? (a) a line lifted at a gap (b) a straight line (c) a long and a short line (d) a dot where wires meet
17. 17.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
18. 18.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) diode (b) motor (c) capacitor (d) wire
19. 19.Which drawing is the symbol for an LED? (a) a circle with A inside (b) a plain rectangle (c) triangle, bar and arrows (d) a dot where wires meet
20. 20.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) motor (b) cell (c) switch (d) battery
21. 21.✏️ In a circuit diagram, which part is drawn as a straight line? (a) switch (b) LED (c) wire (d) battery
22. 22.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) battery (c) wire (d) voltmeter
23. 23.Which drawing is the symbol for a capacitor? (a) one tall, one short bar (b) a small empty box (c) a line lifted at a gap (d) two equal parallel lines
24. 24.True or false: a circle with M inside is the symbol for a junction. (a) True (b) False
25. 25.True or false: a circle with A inside is the symbol for a switch. (a) False (b) True
26. 26.True or false: a dot where wires meet is the symbol for a junction. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) wire (b) LED (c) ammeter (d) junction
28. 28.Which drawing is the symbol for a resistor? (a) a dot where wires meet (b) one tall, one short bar (c) many long-short pairs (d) a small empty box
29. 29.True or false: a circle with V inside is the symbol for a voltmeter. (a) False (b) True
30. 30.True or false: a long and a short line is the symbol for a junction. (a) False (b) True
31. 31.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) motor (c) resistor (d) bulb
32. 32.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) junction (b) motor (c) capacitor (d) voltmeter
33. 33.True or false: a circle with M inside is the symbol for a voltmeter. (a) False (b) True
34. 34.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) diode (b) junction (c) bulb (d) capacitor
35. 35.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) voltmeter (b) ammeter (c) resistor (d) battery
36. 36.Which drawing is the symbol for a wire? (a) a circle with M inside (b) a straight line (c) a circle with a cross (d) a long and a short line
37. 37.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a circle with an X in it (c) triangle, bar and arrows (d) a plain rectangle
38. 38.True or false: many long-short pairs is the symbol for an ammeter. (a) True (b) False
39. 39.True or false: a small empty box is the symbol for a resistor. (a) False (b) True
40. 40.Which drawing is the symbol for a cell? (a) a circle with V inside (b) a dot where wires meet (c) a line lifted at a gap (d) a long and a short line

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