Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 373 · 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.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) switch (b) battery (c) ammeter (d) capacitor
2. 2.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a line lifted at a gap (c) many long-short pairs (d) a dot where wires meet
3. 3.✏️ Why do engineers draw circuits with symbols? (a) to hide the circuit (b) quick and clear for all (c) to make it colourful (d) symbols are heavier
4. 4.✏️ In a circuit diagram, wires are usually drawn as … (a) little stars (b) dotted circles (c) straight lines (d) wavy lines
5. 5.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
6. 6.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) bulb (b) cell (c) wire (d) resistor
7. 7.✏️ In a circuit diagram, which part is drawn as a straight line? (a) capacitor (b) ammeter (c) bulb (d) wire
8. 8.✏️ In a cell symbol, which line is the + terminal? (a) the longer line (b) the shorter line (c) both lines (d) neither line
9. 9.True or false: triangle against a bar is the symbol for an ammeter. (a) False (b) True
10. 10.True or false: a circle with M inside is the symbol for a motor. (a) False (b) True
11. 11.True or false: a circle with V inside is the symbol for a motor. (a) False (b) True
12. 12.True or false: a plain rectangle is the symbol for a junction. (a) False (b) True
13. 13.Which drawing is the symbol for a battery? (a) a straight line (b) one tall, one short bar (c) a line lifted at a gap (d) two or more cell symbols
14. 14.Which drawing is the symbol for a cell? (a) a circle with a cross (b) two or more cell symbols (c) a circle with M inside (d) one tall, one short bar
15. 15.True or false: a plain rectangle is the symbol for a resistor. (a) False (b) True
16. 16.Which drawing is the symbol for a capacitor? (a) a circle with V inside (b) a circle with an X in it (c) two equal parallel lines (d) a long and a short line
17. 17.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) voltmeter (b) battery (c) ammeter (d) cell
18. 18.Which drawing is the symbol for a cell? (a) a long and a short line (b) a circle with M inside (c) a straight line (d) a circle with a cross
19. 19.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) resistor (b) cell (c) voltmeter (d) battery
20. 20.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
21. 21.True or false: a circle with a cross is the symbol for a bulb. (a) False (b) True
22. 22.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) resistor (b) bulb (c) LED (d) battery
23. 23.Which drawing is the symbol for an ammeter? (a) a small empty box (b) a circle with A inside (c) two or more cell symbols (d) a circle with M inside
24. 24.True or false: a dot where wires meet is the symbol for a junction. (a) False (b) True
25. 25.Which drawing is the symbol for a diode? (a) two or more cell symbols (b) triangle against a bar (c) a long and a short line (d) a circle with A inside
26. 26.Which drawing is the symbol for a switch? (a) a circle with an X in it (b) triangle against a bar (c) a line lifted at a gap (d) a dot where wires meet
27. 27.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
28. 28.Which drawing is the symbol for an LED? (a) a straight line (b) one tall, one short bar (c) a circle with A inside (d) triangle, bar and arrows
29. 29.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) wire (b) cell (c) voltmeter (d) resistor
30. 30.True or false: a circle with A inside is the symbol for a resistor. (a) True (b) False
31. 31.True or false: a circle with an X in it is the symbol for a battery. (a) True (b) False
32. 32.True or false: many long-short pairs is the symbol for a battery. (a) True (b) False
33. 33.True or false: many long-short pairs is the symbol for an LED. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) diode (b) junction (c) resistor (d) LED
35. 35.True or false: a circle with M inside is the symbol for an LED. (a) False (b) True
36. 36.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) bulb (b) battery (c) capacitor (d) switch
37. 37.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) capacitor (b) resistor (c) switch (d) diode
38. 38.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) ammeter (b) capacitor (c) voltmeter (d) diode
39. 39.True or false: a circle with an X in it is the symbol for a wire. (a) True (b) False
40. 40.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) bulb (c) capacitor (d) junction

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